Crockpot Breakfast Casserole

5 from 22 votes

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Crockpot Breakfast Casserole is perfect for holiday and busy mornings. Tender potatoes, fluffy eggs, and savory sausage cook up overnight in the slow cooker, so you can wake up to a delicious, healthy breakfast!

A piece of breakfast casserole on a plate topped with sour cream

Overnight Crockpot Breakfast Casserole

This crockpot breakfast casserole is my go-to when I have company staying at my home. I don’t want my guests to miss out on the most important meal of the day! The eggs cook up light and fluffy all around the ingredients, so it’s basically a giant omelette once it’s all baked. This breakfast casserole is so easy to whip up the night before and then let the Crockpot do the work while we all sleep. Then guests are greeted to fragrant breakfast smells first thing in the morning and you get all the credit for serving a delicious breakfast. It’s so great for Christmas Eve, busy Sunday mornings or anytime you want a big family breakfast but don’t want all the fuss.

How Long to Cook this Breakfast Casserole

If your Crockpot cooks hot or if you have an oval one (like the one pictured above) it may only take six hours on low. A smaller, round crockpot may take the full 8 hours to cook through the center. So, you may have to stay up a little late the night before to start the cooking process. But if you’re like me, it’s way easier to stay up late and visit with company than it is to wake up early and make a big breakfast. To make clean up even easier try using a crockpot/slow cooker liner!

Crock pot breakfast casserole

Variations on the Recipe – More Ingredients to Try

Our recipe for Crockpot Breakfast Casserole is a very flavorful with the simple ingredients we use. We love it this way, but we have also tried some variations depending on what we are in the mood for and what we have on hand.

  • Potatoes: I love using the Potatoes O’Brien because they are already chopped and they come with red and green bell peppers. This just speeds up the process for me and makes this recipe even easier. However, you can really use any frozen hash brown variation. You can even use fresh grated potatoes, but the casserole will cook up a lot quicker with fresh as opposed to frozen.
  • Meat: I like using sausage links because it is what my family prefers, but you can use any breakfast meat you have on hand! It just needs to be cooked first. Feel free to use sausage, bacon, turkey bacon, or ham. If meat isn’t your thing, you can use meat substitutes, or no meat at all!
  • Veggies: If you’ve got it in the fridge, it can go in this recipe (almost, haha). We’ve used peppers, onions, green onions, mushrooms, spinach, kale, green chiles, zucchini, tomatoes, and asparagus, just to name a few. If you can find it on a omelette bar, chances are it will taste delicious in this recipe!
  • Cheese: Cheddar is an obvious breakfast choice, but you can change it up! Any cheese that melts well will work. We’ve used Swiss, mozzarella, pepper jack, Monterey jack, and Colby jack before. They’ve all been great!
  • Toppings: Everyone in my family likes topping this casserole with something different. We’ve tried ketchup, sour cream and salsa, sriracha, avocado, chives, cheese, and Tobasco, just to name a few. Whatever you top this with, we know you will love it!

Still looking for ideas to make this casserole your own? Try some of our most popular combinations.

  • Denver Style: Cubed ham, green peppers, onion, and cheddar cheese
  • California Style: Bacon, tomatoes, peppers, onion, topped with lots and lots of avocado
  • Meat Lovers: Bacon, sausage, and ham
  • Mushroom and Swiss: Spinach, mushrooms, Swiss cheese
  • Garden Delight: Peppers, onions, tomatoes, asparagus, mushrooms, spinach
  • Italian: Pancetta, red bell peppers, mozzarella
  • Southwest: Green chiles, jalapenos, pepper jack cheese, top with avocado, salsa, and sour cream
A slice of breakfast casserole with a bite taken out of it with a fork

What to Serve with Crockpot Breakfast Casserole

This casserole is a terrific all-in-one dish, so you could serve it alone with some toppings and a side of fruit. For a big breakfast or brunch, you can also pair it with our Make Ahead Breakfast Parfaits, our rich Blueberry Cream Cheese Coffee Cake or a batch of the BEST Blueberry Muffins.

READ NEXT: 33+ Super Easy Breakfast Ideas

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Try a few more of our favorite recipes for your next breakfast or brunch. Check out our list of 25+ Breakfast Ideas or see some of our favorites below!

How to Make Crockpot Breakfast Casserole

A plate with a slice of breakfast casserole on it

CrockPot Breakfast Casserole

5 from 22 votes
CrockPot Breakfast Casserole is perfect for busy mornings. Tender potatoes, fluffy eggs, and savory sausage cook up overnight in the slow cooker, so you can wake up to a delicious, healthy breakfast!
Prep Time 20 mins
Cook Time 6 hrs
Total Time 6 hrs 20 mins
Course Breakfast
Cuisine American
Servings 12 servings



  • Crockpot Slow Cooker



  • Brown sausage links in a large skillet until cooked through and cut into pieces.  Set aside.
    Cooked and diced sausage in a small bowl
  • In a large bowl, whisk the eggs and milk together. Add salt and pepper.
    Eggs and Milk mixed in a bowl
  • Spray crockpot with cooking spray and layer the cut up sausage, potatoes o'brien, tomato, and cheese. Pour the egg mixture over the top. Stir everything together.
    Potatoes, sausage, tomatoes, and cheese in a crock pot
  • Cook on low heat for 6 to 8 hours. The oval crock pots like the one shown may cook faster than the typical round crock pots. Try to aim for the 6 hour mark if using one like this.
    Crock pot breakfast casserole

Nutrition Information

Calories: 272kcalCarbohydrates: 15gProtein: 16gFat: 16gSaturated Fat: 7gCholesterol: 199mgSodium: 332mgPotassium: 398mgFiber: 1gSugar: 2gVitamin A: 565IUVitamin C: 8mgCalcium: 195mgIron: 2mg

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About the author

Erica Walker

Erica lives in Boise, Idaho with her husband, Jared, an attorney, and her beautiful three girls. Beyond the world of recipes, she loves adventuring with everything from kayaking, to cruising, to snowboarding and taking the family along for the thrill ride.

More about Erica Walker

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How many stars would you give this recipe?


  1. 5 stars
    This is such a delicous breakfast to have waiting in the slow cooker! It has become a go-to in our house!

  2. 5 stars
    This is one of those easy to make recipes that I don’t have to fuss over to much! Just perfect!

  3. Has anyone tried it without eggs? I have a bunch of people coming for Christmas breakfast and this would be great. But I have a couple people who don’t eat eggs. Any suggestions? Thanks!

  4. I have used this recipe many times, it always comes out great. I do have to cut the time back as I have an oval slow cooker, and it’s not very slow! I also add bacon, and sometimes sausage gravy. (which is very good, but even more fattening!) Thanks for the ‘comfort food’ breakfast idea, my family really enjoys it!

  5. I am always so amazed at all the goofy questions people ask about recipes! People this is the recipe she has and uses, she doesn’t do all these weird things you are asking. If you want to know if something can be changed, then change it and let her know if it can. Do any of you know how to cook? You be the ones that experiment and tell us if it works. She knows her recipe works and she likes it the way it is I am sure. By the way I make my own version of this but I mix in cut up biscuits and bake in the oven. This is very easy to make it your own by adding or not adding whatever you would like. I often leave out the hashbrowns. Bake it until you think it is done. You should be able to tell when it is, if eggs are done, biscuits, are done or whatever if you know anything about cooking. People cooking is like experimenting! Thanks for letting me get this off my chest, always amazes me at all the goofy questions, and how just because someone submits a recipe they are suppose to know how many different way it can be changed, what do they think you try all these different things?

    1. When someone posts a recipe, I think they expect questions and might even welcome them. Your comment could possibly make someone with very little groceries embarrassed to ask if something can be substituted, added, left out. This could ruin their meal and waste money. Getting something off YOUR chest may help you but burden someone else.

    2. Haha, Sue I just read all these comments/questions and thought the exact same thing! SO many questions, so many weird variations, hah!

      Planning to make this soon can’t wait to try it! Thanks! 🙂

  6. I just made this last night. Everyone liked it, except me. I didn’t like the texture of the hash browns in it. I used 2 pounds of pork sausage that I cooked up first, that was great! I sprayed the crock pot with Pam first and it came out very nice. I cooked mine of low for 9 hrs. and it was a little too long.

  7. Has this ever been cooked with just regular russet potatoes either cut up in small chunks or shredded? I don’t have any hashbrowns on hand and am looking for a breakfast dish for supper tonight. THANKS!!!

  8. Is that slow-cooker insert one that was purchased separately? It doesn’t look like the black oval inserts for that type of slow-cooker. I broke my insert and wasn’t sure if I should toss the entire unit or not. If it is separate, do you know if it is lead-free? Thanks!

    1. Should be able to go to the website for the manufacturer of the crock pot and see if you can order a replacement.

  9. Made this last night and had it this morning… My kids were not impressed with it. And I wasn’t a fan either.

    1. I think we have this recipe in It has the calories and everything there… lol, you may not want to know!

    2. Calories: 552kcal | Carbohydrates: 31g | Protein: 31g | Fat: 34g | Saturated Fat: 15g | Cholesterol: 400mg | Sodium: 665mg | Potassium: 791mg | Fiber: 2g | Sugar: 3g | Vitamin A: 1120IU | Vitamin C: 15.5mg | Calcium: 388mg | Iron: 3.8mg

    1. You would need a HUGE Crock Pot, but sure! I have a pretty big crock pot (the biggest you can buy at WalMart) and if I doubled the recipe it would definitely overflow.

      1. What if you have mini crock pot like a 2.5 or 3 quart? I’m only trying to make this for 2 other people…. I’m sure i can figure out how many eggs/milk/bacon etc to use to fit my crock pot..but I’m worried about cooking time! i sure don’t wanna over cook/burn it! I’ve seen people make breakfast casserole in a crock pot before and the eggs almost turn out grey/brownish from overcooking.

        1. Yikes. I for sure wouldn’t cook it as long. I would say the first time you do it, keep your eye on it. Then let me know how it turns out!

  10. I was wondering if it would work with fresh potatoes, onions and peppers instead of the frozen potatoes o’brian? If so, should I alter the recipe in any other way (i.e. when to put them in or cooking time?)

    1. Thats what I did. I baked russet potatoes and chopped onion and green pepper from my garden. was going to throw in some garlic but making it for people at work so I thought not.

      1. Haha! Leaving out the garlic was a smart idea – especially with tight work spaces. Nothing is better than fresh from the garden! We’re glad you liked the recipe!

      1. Dry bread works best. I buy seasoned stuffing cubes. It’s how we make Christmas morning baked eggs 🙂 And it’s delish!

        1. Yes it cooks overnight- low heat. The instructions above will tell you everything you need to know. Hope this helps!