Homemade Spaghetti Sauce with Fresh Tomatoes

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5 from 298 votes
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This Homemade Spaghetti Sauce with Fresh Tomatoes is one of the best ways to use ripe garden tomatoes. It is thick, hearty, and filled with onions, mushrooms, garlic, fresh herbs, and plenty of rich tomato flavor. Serve it over spaghetti, use it in lasagna, or make a double batch to freeze for an easy dinner later.

A close up of a bowl of spaghetti showing the texture of the sauce

5 Star Reviews ⭐️⭐️⭐️⭐️⭐️

“My husband said it was the best pasta sauce I have ever made. The depth of flavor and simplicity was similar to what we experienced in Italy. It will be my go to recipe from now on.” – LuAnne

“By far the best sauce I’ve ever made. The soy sauce in the mushrooms adds a deep richness. You will never regret making this.” – Carolyn

“Absolutely love this recipe! 2nd time I’ve made it this summer, with the abundance of tomatoes my garden has produced. Thank You! This recipe is definitely a keeper.” – Cheryl

Why I Love This Sauce


I have been making homemade spaghetti sauce with fresh tomatoes for years, especially when our garden tomatoes are coming on faster than we can eat them. The flavor is so much fresher than sauce from a jar, and I love being able to adjust the texture and seasonings as it cooks.

The mushrooms give the sauce a hearty texture, and my little trick of adding soy sauce to the mushrooms brings out a rich, savory flavor without making the sauce taste like soy sauce. Fresh basil, oregano, garlic, and slowly simmered tomatoes finish it off. It takes a little longer than opening a jar, but most of that time is hands-off simmering, and the flavor is well worth it.

This sauce is also very flexible. You can keep it meatless, add ground beef or sausage, leave it chunky, blend it smooth, or roast the tomatoes first for even more concentrated flavor.

🩷 Erica

Ingredients You’ll Need

Fresh tomatoes, basil, garlic, onions, mushrooms, olive oil, soy sauce, brown sugar, and spices for Homemade Spaghetti Sauce with Fresh Tomatoes.
  • Fresh tomatoes: Ripe garden tomatoes give this sauce its fresh flavor, but good-quality canned tomatoes will also work when tomatoes are not in season.
  • Olive oil: Used to soften the onion and mushrooms and create the flavorful base of the sauce.
  • Onion: A chopped yellow, white, or sweet onion adds a mild sweetness and savory flavor.
  • Mushrooms: Fresh chopped mushrooms give the meatless sauce a hearty texture and rich flavor.
  • Soy sauce: A small amount brings out the savory flavor of the mushrooms without making the finished sauce taste like soy sauce.
  • Garlic: Freshly minced garlic adds the best flavor, but jarred minced garlic can be used when needed.
  • Fresh herbs: Fresh basil and oregano give the sauce a bright, garden-fresh flavor.
  • Brown sugar: Start with a small amount and add more only if the tomatoes taste especially acidic.
  • Salt and pepper: Add these gradually and taste the sauce as it simmers.

Ingredient Additions and Substitutions

This fresh tomato spaghetti sauce is easy to adjust based on what you have in the garden or refrigerator.

  • Bell peppers: Add chopped red, yellow, or green bell peppers with the onion.
  • Carrots: Finely grated carrots add natural sweetness and help give the sauce more body.
  • Zucchini: Stir in finely chopped zucchini for more vegetables and a chunkier sauce.
  • Red pepper flakes: Add a pinch for a little heat.
  • Red wine: Pour in a splash after sautéing the vegetables and let it simmer for a few minutes before adding the tomatoes.
  • Tomato paste: Add one tablespoon at a time when you want a thicker or more concentrated sauce.
  • Fresh parsley: Add chopped parsley with the basil or sprinkle it over the sauce before serving.
  • Dried herbs: Substitute dried basil and oregano when fresh herbs are not available. Because dried herbs are more concentrated, use a smaller amount.
  • No mushrooms: Leave them out or replace them with finely chopped bell peppers, carrots, or zucchini.
  • Gluten-free option: Replace regular soy sauce with certified gluten-free tamari or gluten-free soy sauce.
  • Vegetarian option: Keep the sauce as written and check that your soy sauce is vegetarian.

Make It a Meat Sauce

You can easily turn this into a hearty spaghetti meat sauce.

Brown about one pound of ground beef, ground pork, Italian sausage, ground turkey, or a mixture of meats. You can cook the meat with the onion or brown it separately and drain any extra grease before adding it to the sauce.

Continue with the recipe as written and let the meat simmer with the tomatoes and seasonings. The longer simmering time helps the meat flavor blend into the sauce.

You can also add cooked meatballs, shredded beef short ribs, or sliced Italian sausage. For another option, try our homemade meat sauce.

How to Make Spaghetti Sauce with Fresh Tomatoes

Fresh tomatoes blanching in boiling water to make homemade spaghetti sauce
  1. Blanch the tomatoes. Cut a shallow X in the bottom of each tomato. Lower a few tomatoes at a time into boiling water and cook for 30 to 60 seconds, or until the skins begin to loosen. Transfer them immediately to a bowl of ice water.
Peeling blanched garden tomatoes to make spaghetti sauce
  1. Peel and crush the tomatoes. Remove the skins and tough stem areas, then cut the tomatoes into quarters. Pulse them a few times in a food processor or blender until they look like crushed tomatoes. Do not completely purée them unless you want a smooth sauce.
Sautéing mushrooms and onions in a frying pan to make a spaghetti sauce
  1. Cook the vegetables. Heat the olive oil in a large, heavy pot. Add the onion and cook until softened. Add the mushrooms and cook for a few more minutes. Stir in the soy sauce and garlic, then cook just until the garlic is fragrant.
Crushed fresh tomatoes, basil, oregano, mushrooms, and onions simmering in a skillet
  1. Add the tomatoes and seasonings. Stir in the crushed tomatoes, basil, oregano, brown sugar, salt, and pepper. Bring the mixture to a gentle simmer.
Spaghetti sauce simmering in a skillet
  1. Simmer the sauce. Cook uncovered for at least one hour, stirring occasionally and scraping the bottom of the pot. For a deeper flavor, simmer it longer. When simmering for more than two hours, cover the pot during the first hour, then uncover it so the sauce can reduce.
Homemade spaghetti sauce over a bowl of spaghetti noodles for Homemade Spaghetti Sauce with Fresh Tomatoes
  1. Taste and serve. Taste the sauce and adjust the salt, pepper, sugar, or herbs as needed. Serve over hot pasta or use it in your favorite pasta recipe.

Best Tomatoes to Use

The best tomatoes for spaghetti sauce are ripe, flavorful tomatoes with plenty of flesh and not too much water.

  • Roma or plum tomatoes are my first choice because they are meaty, have fewer seeds, and cook into a naturally thick sauce. Fresh San Marzano-style tomatoes are another good option when you can find them.
  • Heirloom tomatoes add wonderful flavor, but some varieties contain more liquid. They may need a longer simmering time.
  • Beefsteak tomatoes work well, especially when they are fully ripe, but they are usually juicier than Roma tomatoes. Combining them with paste tomatoes gives the sauce a good balance of flavor and texture.
  • Cherry and grape tomatoes are naturally sweet and can be added to other tomato varieties. They are especially good when roasted first.

I often use a mixture of whatever ripe tomatoes are coming out of the garden. Tomato size and water content can vary quite a bit, so let the consistency of the sauce guide your cooking time.

For help growing your own tomatoes, take a look at our tips and tricks for growing tomatoes.

Roasting Fresh Tomatoes

Roasting the tomatoes first is optional, but it concentrates their flavor and brings out their natural sweetness. This is especially helpful when your tomatoes are juicy or a little less flavorful.

  • Preheat the oven to 375 degrees F and line a large baking sheet with parchment paper.
  • Cut the tomatoes in half. Scoop out some of the loose seeds and gel, then place the tomatoes cut-side down on the baking sheet.
  • Roast until the skins blister and the edges begin to brown, about 30 to 45 minutes depending on the size and variety of the tomatoes.
  • Pour any liquid from the baking sheet through a strainer and save it.
  • Let the tomatoes cool enough to handle, then pull off the loosened skins.
  • Add the roasted tomatoes and strained juices to the sauce pot and continue with the recipe.

Small cherry or grape tomatoes can be roasted with chopped onion, garlic, bell pepper, and a little olive oil. Their skins are thin enough that you can usually blend everything together without peeling them.

No Fresh Tomatoes? No Problem!

Home-grown tomatoes are delicious in this recipe but fresh, garden tomatoes can be hard to come by year-round. Whenever we can’t use fresh tomatoes, we always use DOP San Marzano Tomatoes. They are THE best alternative to homegrown tomatoes. We even use San Marzano tomatoes before resorting to store-bought tomatoes. For this recipe we use two 28oz. cans of tomatoes. We prefer using whole tomatoes as opposed to crushed tomatoes (most DOP tomato brands only come with whole tomatoes) and simply mash them with a potato masher as the sauce cooks down.

Recipe Tips

  • Use a wide, heavy pot. A wider surface helps moisture evaporate so the sauce thickens more quickly.
  • Choose very ripe tomatoes. Underripe tomatoes can make the sauce taste sour or flat.
  • Do not overprocess the tomatoes. A few quick pulses will give you the texture of crushed tomatoes without turning them into juice.
  • Cook the garlic briefly. Garlic can become bitter when burned, so add it after the onion and mushrooms have softened.
  • Keep the heat low. The sauce should gently bubble rather than boil rapidly.
  • Stir more often as the sauce thickens. Thick tomato sauce can stick and scorch on the bottom of the pot.
  • Wait before adding all the sugar. Taste the tomatoes first, then begin with the smaller amount and add more only when needed.
  • Salt gradually. Soy sauce already contains salt, so taste the sauce before adding the full amount.
  • Blend for a smoother sauce. Use an immersion blender directly in the pot, or carefully blend part of the sauce and stir it back in.
  • Add pasta water when serving. A small splash of starchy pasta water can help the sauce coat the noodles.
  • Make a double batch. This sauce freezes well and makes an easy base for future pasta dinners, lasagna, and sandwiches.
A bowl of spaghetti with marinara sauce with the pasta twirled around a fork.

Frequently Asked Questions

Why do you put soy sauce in spaghetti sauce?

The soy sauce is added to the mushrooms rather than directly to the finished sauce. It brings out their deep, savory flavor, similar to the way I prepare sautéed mushrooms. The finished sauce should not taste like soy sauce. You can use low-sodium soy sauce, gluten-free tamari, or leave it out.

How do I make homemade spaghetti sauce thicker?

Simmer the sauce uncovered so excess water can evaporate. A wide pot will help it reduce more quickly. You can also add tomato paste one tablespoon at a time or blend part of the sauce with an immersion blender. Remember that the sauce will continue to thicken slightly as it cools.

Do I need to peel the tomatoes?

Peeling the tomatoes gives the sauce a smoother texture, but it is not required. You can leave the skins on if you do not mind a more rustic texture. Blend the tomatoes well if you are keeping the skins.

Do I need to remove the tomato seeds?

No. I remove the rough stem area, but I do not usually remove all the seeds. You can scoop them out if you prefer a smoother sauce or if your tomatoes contain a lot of watery seed gel.

Can I make this spaghetti sauce in a slow cooker?

Yes. Sauté the onion, mushrooms, garlic, and soy sauce on the stovetop first. Transfer everything to a slow cooker and cook on LOW for 6 to 8 hours or HIGH for 3 to 4 hours. Leave the lid slightly cracked during the last hour if the sauce needs to thicken.

Can I can this homemade spaghetti sauce?

This particular recipe has not been tested for safe home canning, and it contains low-acid ingredients such as onions and mushrooms. Do not use it as a canning recipe. Use our tested canned spaghetti sauce recipe when you want shelf-stable sauce.

How much sauce does this recipe make?

The final amount depends on how juicy the tomatoes are and how long you reduce the sauce. It generally makes about 5 to 7 cups, or approximately six 1-cup servings.

Can I make this sauce without sugar?

Yes. Fully ripe tomatoes may not need much added sugar. You can also add finely grated carrot with the onion for natural sweetness or add a splash of red wine. Taste the finished sauce before deciding whether it needs any sugar.

Can I use regular sugar instead of brown sugar?

Yes. Granulated sugar will balance the acidity, but brown sugar adds a slightly deeper flavor. Begin with a small amount of either one and add more only as needed.

What is the difference between spaghetti sauce and marinara sauce?

Marinara is usually a simpler tomato sauce made with tomatoes, garlic, herbs, and olive oil. Spaghetti sauce is a broader term and may include onions, mushrooms, vegetables, meat, or additional seasonings. This recipe is heartier than a basic marinara but can still be used anywhere you would normally use pasta sauce.

Can I add red wine?

Yes. Add a splash of dry red wine after the onion and mushrooms have cooked. Let it simmer for two or three minutes before adding the tomatoes so the flavor has time to concentrate.

Troubleshooting

  • The sauce is too thin: Continue simmering it uncovered. You can also add tomato paste one tablespoon at a time or blend some of the tomatoes into the sauce.
  • The sauce is too thick: Stir in a small amount of water, broth, reserved tomato juice, or pasta cooking water until it reaches the consistency you like.
  • The sauce tastes too acidic: Let it simmer longer, then add a small amount of brown sugar or finely grated carrot. Add only a little at a time and taste after each addition.
  • The sauce is too sweet: Add more tomatoes, a pinch of salt, or a small splash of red wine or red wine vinegar to bring the flavors back into balance.
  • The sauce tastes bland: It may need more salt, garlic, oregano, basil, or red pepper flakes. Tomatoes can vary greatly in flavor, so taste and adjust as the sauce cooks.
  • The sauce is too salty: Add more unsalted tomatoes or a little water. Avoid adding more salt or soy sauce until the sauce has reduced.
  • The sauce is sticking to the pot: Reduce the heat and stir more frequently. A heavy-bottomed pot will distribute the heat more evenly and help prevent scorching.
  • The vegetables are too chunky: Blend the sauce with an immersion blender until it reaches the texture you want.

Make Ahead and Storage

This sauce is a great make-ahead recipe because the flavor gets even better after the ingredients have had time to sit together.

Allow the sauce to cool, then transfer it to an airtight container. Store it in the refrigerator for 3 to 4 days.

To freeze the sauce, cool it completely in the refrigerator first. Transfer it to freezer-safe containers, glass jars, or resealable freezer bags. Leave room at the top of rigid containers and jars because the sauce will expand as it freezes.

Freezer bags can be laid flat until frozen and then stacked to save space. The sauce can be frozen for up to six months, although the flavor and texture are best within the first three months.

Thaw frozen sauce overnight in the refrigerator. Reheat it in a saucepan over medium-low heat, stirring occasionally. Add a splash of water if it has become too thick.

Pairing Ideas

Serve this Homemade Spaghetti Sauce with Fresh Tomatoes over spaghetti with Olive Garden SaladLoaded Cheesy Garlic Bread, or Oven Roasted Green Beans. You can also use it to make Meatball Sub Sandwiches or Chicken Parmesan Sandwiches.

This fresh tomato spaghetti sauce is one of my favorite ways to use ripe garden tomatoes. Give it a try, then leave a comment and a rating below to let me know how you served it or what vegetables you added. 🍅🍝

Homemade Spaghetti Sauce with Fresh Tomatoes

5 from 298 votes
Prep Time: 30 minutes
Cook Time: 1 hour
Total Time: 1 hour 30 minutes
Servings: 6 servings
Homemade spaghetti sauce is my favorite way to use fresh garden tomatoes. This thick, hearty sauce is filled with mushrooms, onions, garlic, fresh herbs, and rich tomato flavor.

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Ingredients 

  • 12-14 tomatoes, (fresh, garden tomatoes work best- appx. 6-8 lbs. You can also use two 28oz. cans of San Marzano tomatoes)
  • 2 tablespoons olive oil
  • 1 large onion, chopped
  • 8 ounces mushrooms, fresh, chopped
  • 2 teaspoons soy sauce, (see notes above)
  • 6 cloves garlic, minced
  • 10-12 basil leaves, chopped
  • 1 tablespoon oregano, finely chopped
  • 1-2 tablespoons brown sugar, (start with 1 tablespoon, taste, and add more as you go along as needed)
  • 1 tablespoon Kosher salt, (or to taste)
  • 1 teaspoon pepper, (or to taste)

Instructions 

  • Bring a large pot of water to a boil and prepare a large bowl of ice water. Cut a shallow X in the bottom of each tomato. Place a few tomatoes at a time in the boiling water for 30 to 60 seconds, or until the skins begin to loosen.
    Large pot of boiling water with tomatoes and slotted spoon on the side.
  • Immediately transfer them to the ice water. Peel the tomatoes and remove the tough stem areas. Cut the tomatoes into quarters and place them in a food processor or blender. Pulse a few times until they reach the consistency of crushed tomatoes. Do not overprocess. Set aside.
    Peeling skin from blanched tomatoes.
  • Heat the olive oil in a large, heavy pot over medium heat. Add the onion and sauté until softened and translucent. Add the mushrooms and cook for 2 to 3 minutes. Stir in the soy sauce and garlic and cook for another 30 to 60 seconds, or until the garlic is fragrant.
    Skillet with cut cooked mushrooms and onions.
  • Add the crushed tomatoes, basil, oregano, 1 tablespoon brown sugar, salt, and pepper. Stir well and bring the sauce to a gentle simmer.
    Skillet with sauce ingredients added for simmering. Wooden spoon on the side.
  • Simmer uncovered for at least one hour, stirring occasionally and scraping the bottom of the pot. Taste and add more brown sugar, salt, or pepper as needed. When simmering for two hours or longer, cover the pot during the first hour, then uncover it and continue cooking until the sauce reaches your preferred thickness.
    Skillet with Homemade Spaghetti Sauce with Fresh Tomatoes and wooden spoon.
  • Taste once more and adjust the seasonings. Serve hot over cooked pasta or use in your favorite pasta dish.
    Spaghetti sauce made from fresh tomatoes over a bowl of spaghetti for Homemade Spaghetti Sauce with Fresh Tomatoes

Notes

  • Tomato size, sweetness, and water content vary, so adjust the simmering time and seasonings as needed.
  • For a chunky sauce, pulse the tomatoes only a few times and coarsely chop the vegetables.
  • For a smooth sauce, blend the finished sauce with an immersion blender.
  • If the sauce is too thin, simmer it uncovered longer or add tomato paste one tablespoon at a time.
  • To make meat sauce, brown one pound of ground beef or sausage with the onion, drain any excess grease, and continue with the recipe.
  • Two 28-ounce cans of whole or crushed tomatoes can be substituted for fresh tomatoes.
  • For the slow cooker, sauté the vegetables first, then cook the sauce on LOW for 6 to 8 hours or HIGH for 3 to 4 hours.
  • This recipe has not been tested for home canning. Use a tested canning recipe when making shelf-stable sauce.
  • Refrigerate leftovers for 3 to 4 days or freeze in airtight containers for up to six months.

Nutrition

Calories: 128kcal, Carbohydrates: 19g, Protein: 4g, Fat: 5g, Saturated Fat: 1g, Sodium: 1292mg, Potassium: 762mg, Fiber: 4g, Sugar: 12g, Vitamin A: 2100IU, Vitamin C: 37.3mg, Calcium: 52mg, Iron: 1.4mg

Nutrition information is automatically calculated, so should only be used as an approximation.

Course: Dinner, Main Course

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About the author

Erica Walker

Erica lives in Meridian, Idaho, with her husband, Jared, an attorney, and their three daughters. She earned her bachelor’s degree from Brigham Young University and has a passion for travel and adventure. Whether kayaking, hiking, or scuba diving, she loves exploring the world—and bringing her family along for the ride.

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Comments

  1. 5 stars
    This sauce is AMAZING! I followed the recipe to the letter and it is by far the best sauce I’ve ever made. The recipe made enough for spaghetti night, leftovers the next day and I still had enough to make a mini lasagna. This will be my go-to sauce from now on. Thank you!

    1. I’m glad you feel the same way we do about this sauce. 🙂 Thank you so much for your comment!

  2. 5 stars
    OMG! I had tons of cherry tomatoes, very ripe. I used my onions I grew, yellow bell pepper and mushrooms all sliced cooking in sunflower seed oil. I then added my tomatoes, whole, and then crushed a little right with a potato masher on top of the previous mentioned vegetables not worrying about whether they were crused completely. Seeds remained along with skins. Added garlic, fresh basil, salt and pepper. Then I looked at this recipe and added a little soy sauce and dark brown sugar (this would be about half the recipe listed for all ingredients). Only cooked 45 minutes on low heat until it was thick enough for sauce. Added extra virgin olive oil and served over spaghetti. Adding brown sugar was the key. No need to cook for 8 hours. So good…

  3. 5 stars
    Delicious sauce made with a few changes to recipe. 1) I roasted tomatoes but left skin on, and added the tomato seed and liquid to the sause rather than straining out; 2) Substituted cayenne pepper and added some Thai peppers (diced and sauted with the onion, mushroom, garlic and spices); 3) Added 1# ground beef . Added a can of diced tomatoes (didn’t have crushed) and can of tomato paste.

    Complemented with garlic bread, using local bakery’s Italian (or French) bread with butter and garlic powder (or roasted garlic). Excellent!

  4. 5 stars
    Very tasty and easy to make! Reminds me of my Moms homemade spaghetti sauce.
    It
    Differs a bit by having a few more garlic cloves and Mom used Worcestershire sauce
    In stead of soy sauce. I decided to compromise ad use 1 tsp. Soy sauce and 1tsp. Worcestershire sauce…..tastes good and I’ll keep making this recipe with garden tomatoes. Thanks for sharing the recipe!

  5. 5 stars
    This is easily the best spaghetti sauce I have ever made! I added some hamburger for protein. Other than that, I followed the recipe exactly. I can’t wait for leftovers tomorrow.

  6. 5 stars
    This is the first time I’ve loved how a homemade spaghetti sauce turned out. I had a really good “crop” of tomatoes and wanted to try making sauce again and this recipe really hit the ball out of the park! I was skeptical of the mushrooms…never liked in sauce before but it in this recipe it just works! Simmered for 1 hour and it was awesome but looking forward to giving more simmer time to see how it thickens. Sooo good!!!

    1. So glad you liked it! The longer you simmer the better it gets. Also glad the mushrooms worked out for you! My husband doesn’t like mushrooms either but he loves them with this sauce, it just makes it more meaty tasting!

  7. 5 stars
    This beautiful recipe deserves each one of its five star ratings and then 1 million more. The flavors are so perfectly balanced. I’m sure it will be unforgettable for anyone who tastes it.

  8. I want to try this recipe, but I’m also interested in canning some and I’m wondering why the difference in this recipe and your canning recipe? Why can’t I make this recipe and can it?

  9. Can you do this with frozen tomatoes. My tomatoes are ripening very staggered so I want to freeze them before making a batch?
    Is there anything different I should do.

    1. While we have not tried this, I have seen other people freeze the tomatoes before canning. I would recommend still boiling and peeling them before freezing to make it easier!

  10. 5 stars
    I just started to simmer it and it already tastes amazing! I’m so excited to eat this.
    I added red bell peppers with the onion, zuchini with the mushrooms, and cooked ground beef and a splash of worcestershire sauce at the end. I didn’t remove the skins due to lack of time. I had a ton of romas I needed to use from my garden so I rushed this batch, next time I’m going to try the roasting method.
    Thank you!

  11. 5 stars
    Easy to do! Roasting the tomatoes made it so much sweeter and tastier. Added all ingredients except mushrooms (allergies). I used my crock pot for slow cooking and it turned out amazing! Thanks so much for sharing!

    1. Thank-you for this recipe. I’ve been looking for a good spaghetti sauce recipe, I believe I’ve found it. I will give this one a try.

  12. 5 stars
    I haven’t made my own spaghetti sauce in years. When I bought a box of tomatoes from Costco that didn’t meet my slice/eat standards I found your recipe. I had forgotten the difference in taste of a scratch sauce verses bottled. I am looking forward to trying more of your recipes!! I have never posted a comment before for recipes I have found online but felt the need to say thanks:)

  13. 5 stars
    I made this sauce. It was so simple and very tasty.
    I did add about 1 TBsp. of Fennel seed while it was cooking down, and 1 TBsp. of homemade brown sugar.
    I will be using this one for all my to go favorites.