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 crock pot 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 slow cooker 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! I love these liners from Amazon.

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.

More Breakfast Recipes You Will Love

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


  • Crock Pot 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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  1. 5 stars
    This is the best! Breakfast is our favorite meal at our household but we are always rushed and so busy on the weekdays and want to sleep in on the weekends. So this is perfect for us!

    1. I haven’t tried this recipe with just egg whites, so I am not sure how it would turn out. Let us know how it goes if you do try it!

  2. 5 stars
    Best recipe ever!! Breakfast casseroles are my favorite & making it in the crock pot, makes it an even better recipe! So tasty!

  3. 5 stars
    I cook so many things in my slow cooker overnight but I never thought to cook a breakfast casserole! This is fantastic and so delicious!

  4. 5 stars
    Such a tasty recipe and perfect for lazy mornings as it’s ready when you wake up! Love a delicious breakfast casserole.

  5. 5 stars
    The perfect way to enjoy a lazy Sunday breakfast. No need to wake up early to stand in the kitchen. Just wake up and grab a plate. 🙂

  6. 5 stars
    What a brilliant use of a slow cooker to make such a gorgeous looking breakfast dish. Can’t wait to try this!

  7. 5 stars
    I do NOT like to get up early to feed my hungry brood – this is perfect (and so delicious) for our busy mornings!

  8. 5 stars
    I love breakfast casseroles! I love that this one is in the slow cooker which will make it so much easier and convenient.

  9. 5 stars
    This couldn’t have come at a better time. We have family staying with us next week and this will be perfect for breakfast! Thank you!!