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You’ll never look at brunch the same way again! With layers of potatoes, eggs, cheese and sausage, this Crock Pot breakfast casserole is an easy recipe for a breakfast potluck or holiday celebration.

Slice of Crock Pot Breakfast Casserole with sausage on a blue and white plate

Y’all…today’s recipe is a total game changer! I had heard about breakfast casseroles in the slow cooker, but I hadn’t been brave enough to try one until now — mostly because I was worried that the ingredients wouldn’t cook evenly or that the casserole wouldn’t have that crispy top that we all know and love.

But guess what? I’m here to tell you that this breakfast casserole with sausage is just as good (if not better) than its oven-baked counterparts!

Overhead shot of Crock Pot Breakfast Casserole with serving spoon

How to make Crock Pot Breakfast Casserole:

Whether you’re serving it as a special post-church Sunday morning treat, or using it as a weeknight dinner, you will LOVE how easily this meal comes together. Just toss the ingredients into the Crock Pot in advance and then forget about it until mealtime!

Ingredients for a breakfast casserole in the slow cooker:

Bag of Potatoes O'Brien

First, brown the sausage in a large skillet until no longer pink. Drain and set aside.

Browned pork breakfast sausage in a cast iron skillet

Next, spray a large slow cooker with cooking spray and place half of the potatoes in the bottom. Add half of the sausage on top, and then sprinkle with half of the grated cheese.

Grated cheddar cheese on cutting board

Repeat the layers, ending with the rest of the cheese on top. Next, in a large bowl, whisk together eggs, milk, seasoned salt and pepper.

Large mixing bowl with eggs and whisk

Pour the egg mixture evenly over the ingredients in the Crock Pot, and then cover and cook on LOW for about 4-5 hours (or until the eggs are set).

Remove the insert from the slow cooker and place it on a wire rack to cool for about 30 minutes.

Breakfast casserole in Crock Pot on a cooling rack

Slice the casserole into squares, garnish with optional toppings, and serve!

Spoon serving Crock Pot breakfast casserole topped with chopped fresh veggies

What goes with Crock Pot Breakfast Casserole?

You can top the individual slices of casserole with sliced green onion, finely chopped bell pepper, or chopped parsley for a bright, fresh burst of color and flavor.

On the side, try serving the breakfast casserole with any of these easy options:

Front shot of a sausage and egg and cheese breakfast casserole on a plate

Cook’s Tips and Recipe Variations:

  • I used Potatoes O’Brien with onions and peppers, but you can also use a 20-ounce bag of frozen shredded hash browns, thawed. If you use the hash browns, you might want to add some chopped bell peppers and onions to the dish for that extra flavor!
  • I have made this casserole with Italian sausage, too. Just remove the casings from the sausage and brown in the skillet as instructed.
  • I like the classic taste of cheddar cheese here, but you can substitute with an equal amount of Monterey Jack cheese, Pepper Jack cheese, mozzarella cheese, or any other cheeses that you enjoy.
  • For an Italian version of this casserole, try using Italian sausage, 1 tablespoon of Italian seasoning, and mozzarella cheese.
  • Make this Crock Pot breakfast casserole vegetarian by omitting the sausage and adding 1 red bell pepper, 1 green bell pepper, 1 onion and 1 (8-ounce) container of sliced mushrooms. Cook the chopped vegetables in a skillet and season with salt and pepper before layering in the Crock Pot.
Slow cooker breakfast casserole on a plate with a fork

What is a good breakfast potluck item?

Try these easy breakfast casserole recipes, too:

Did you make this recipe?

If you enjoyed this recipe, please leave a comment with a 5-star review at the bottom of the post. Thank you!

Slice of Crock Pot Breakfast Casserole with sausage on a blue and white plate

Crock Pot Breakfast Casserole

5 from 16 votes
Prep: 20 minutes
Cook: 4 hours
Cooling Time 30 minutes
Total: 4 hours 50 minutes
Servings 8 servings
Calories 481 kcal
A delicious and easy breakfast casserole with eggs, sausage, potatoes and cheese — made in the slow cooker!

Ingredients
  

  • 1 lb. bulk pork sausage
  • 1 (28 ounce) package frozen Potatoes O’Brien with peppers and onions, thawed (or substitute with a 20-ounce package of frozen shredded hash browns)
  • 2 cups (about 8 ounces) grated cheddar cheese
  • 12 eggs
  • 1 cup milk
  • 1 ½ teaspoons seasoned salt (or substitute with 1 teaspoon regular salt)
  • ½ teaspoon pepper

Instructions

  • Brown sausage in a skillet over medium-high heat until no longer pink; drain.
  • Spray a 6-quart slow cooker with cooking spray.
  • Place half of the potatoes in the bottom of the slow cooker. Top with half of the sausage, and then add half of the cheese.
  • Repeat layers one more time, ending with the remaining cheese on top.
  • In a large bowl, whisk together eggs, milk, seasoned salt, and pepper.
  • Pour egg mixture evenly into the slow cooker.
  • Cover and cook on LOW for 4-5 hours, or until eggs are set. Turn off the slow cooker, remove the lid, and place the slow cooker insert on a cooling rack. Let stand (UNCOVERED) for about 30 minutes. Slice and serve!

Notes

  • I used Potatoes O’Brien with onions and peppers, but you can also use a 20-ounce bag of frozen shredded hash browns, thawed. If you use the hash browns, you might want to add some chopped bell peppers and onions to the dish for that extra flavor!
  • I have made this casserole with Italian sausage, too. Just remove the casings from the sausage and brown in the skillet as instructed.
  • I like the classic taste of cheddar cheese here, but you can substitute with an equal amount of Monterey Jack cheese, Pepper Jack cheese, mozzarella cheese, or any other cheeses that you enjoy.
  • For an Italian version of this casserole, try using Italian sausage, 1 tablespoon of Italian seasoning, and mozzarella cheese.
  • Make this Crock Pot breakfast casserole vegetarian by omitting the sausage and adding 1 red bell pepper, 1 green bell pepper, 1 onion and 1 (8-ounce) container of sliced mushrooms. Cook the chopped vegetables in a skillet and season with salt and pepper before layering in the Crock Pot.

Nutrition

Serving: 1/8 of the casseroleCalories: 481kcalCarbohydrates: 14.9gProtein: 29.7gFat: 32.9gSaturated Fat: 13.6gPolyunsaturated Fat: 1.8gMonounsaturated Fat: 5.5gCholesterol: 360.5mgSodium: 1029mgPotassium: 357.2mgFiber: 2.3gSugar: 3.1gVitamin A: 1080IUVitamin C: 38.9mgCalcium: 209mgIron: 3mg
Keyword: Breakfast Casserole in the slow cooker, Crock Pot Breakfast Casserole, slow cooker casserole
Course: Breakfast
Cuisine: American

This post was originally published in September, 2015. It was updated in October, 2019.

Square shot of Blair Lonergan from the food blog The Seasoned Mom serving a pie at a table outside.

Hey, I’m Blair!

Welcome to my farmhouse kitchen in the foothills of Virginia’s Blue Ridge Mountains. Inspired by local traditions and seasonal fare, you’ll find plenty of easy, comforting recipes that bring your family together around the table. It’s down-home, country-style cooking!

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Comments

  1. Maura says:

    5 stars
    Thanks for the opportunity! This looks delicious and even though it’s so easy, it looks so impressive. Will definitely try this for thanksgiving morning!

  2. Catherine l. says:

    That breakfast looks super yummy!! Would love to make it in the new crockpot. 😉

    1. Blair says:

      Thanks, Catherine!

  3. Linda says:

    This looks so good!Will make this weekend.

    1. Blair says:

      Awesome! Enjoy, Linda!

  4. rita says:

    We make a breakfast casserole every year for Christmas, it’s very similar to yours…I even use the simply potatoes hash browns. I never thought to make it in my crock pot…..I think I’m going to have to give it a go though. I’m getting ready to have my 15th surgery, (this one on my shoulder) and I’m trying to get things prepared, lol…like that ever happens 🙂 Thanks so much for sharing this with all of us…..have a wonderful weekend!

    1. Blair says:

      That’s great, Rita! I always make a similar breakfast casserole for Christmas too, so I’m with you — using the slow cooker will make it even easier. Now that I know it works, this will be my go-to method! Good luck with your surgery!

  5. Susan newman says:

    What a wonderful new way to use my crockpot. Who would of thought.. for beeakfast.. looks delicious. I just started following you’re recipes not long ago. This looks so good and easy it’s the first one I’ll be trying this weekend. GOD BLESS YOU.

    1. Blair says:

      Thanks so much, Susan! I appreciate you following along with our adventures. Enjoy!!

  6. Brandi Bryant says:

    I really need to try this recipe. Thanks for the giveaway.

  7. paige c says:

    I would love to have a crock pot it would make some weeknight meals so much easier!

  8. Annie says:

    So many delicious recipes for the slow cooker/crockpot – would love to give this to some soon-to-be newlyweds I know.

  9. Jeffrey says:

    My favorite thing to make in a slow cooker is overnight oatmeal, I just love the smell when I wake up in the morning.

  10. Kristin R says:

    Just prepped everything for dinner for tomorrow. Love it when i don’t have to cook when i get home.

    1. Blair says:

      Awesome!! Enjoy, Kristin!

  11. Jennai says:

    5 stars
    Making breakfast in a crockpot is such a good idea. This looks delish!

    1. Blair says:

      Thanks, Jennai!

  12. Beverly says:

    This casserole sounds awesome! Using the crockpot will be great.

    1. Blair says:

      Thanks, Beverly! 🙂

    2. Blair says:

      Beverly! Congrats!!! You are the winner of the Crock Pot! Please email me with your contact info!

      1. Beverly says:

        Thanks!!!!!!!! I’m so excited

  13. HilLesha says:

    5 stars
    Oh, how delicious! Thanks for the giveaway. 🙂

  14. shaunie says:

    I would like to say that I would love to have. I would use it for chili and pot roasts.

  15. HS says:

    I love breakfast casserole, perfect for holidays!

  16. Sara @LifesLittleSweets.com says:

    5 stars
    I love this, I am a slow cooker fan, pinning this one for later to my easy meals board! Thank you for sharing!

    1. Blair says:

      Yay! Thanks for pinning, Sara! I hope you get to try it. 🙂

  17. Mary Ann Simrell says:

    Sounds great and would be excellent for Holidays?

    1. Blair says:

      Thanks, Mary Ann! Absolutely!! 🙂

  18. Donna says:

    Recipe sounds yummy. Can’t wait to try it!

    1. Blair says:

      Thanks, Donna! 🙂

  19. susan chee says:

    5 stars
    This looks great! Definitely going on the menu for our next women’s retreat

    1. Blair says:

      Awesome! Enjoy, Susan!!

  20. Matt says:

    5 stars
    Can you substitute the dairy items with non-dairy items? If so, which ones would you recommend?

    1. Blair says:

      Hey, Matt! I have no idea about the cheese, since I have never experimented with non-dairy cheese products. I suppose you could leave it out, but it would just be missing that cheesy taste. 🙂

      The milk can easily be substituted with your favorite non-dairy milk. I like Almond Breeze Unsweetened Original Almondmilk as a nice alternative, but soy, cashew, or other similar options would also work!