Overnight Crock Pot Breakfast Casserole

User Reviews

4.3

1,140 reviews
Good
  • Prep Time

    20 mins

  • Cook Time

    8 hrs

  • Total Time

    8 hrs 20 mins

  • Servings

    8

  • Calories

    345 kcal

  • Course

    Breakfast

Overnight Crock Pot Breakfast Casserole

This Overnight Crock Pot Breakfast Casserole layers frozen shredded or diced potatoes, diced onions and bell peppers, cooked crumbled turkey sausage, and shredded cheddar cheese, topped with an egg and milk mixture seasoned with salt, pepper, and spices. Slow cooking overnight yields a firm, hearty casserole with savory flavors blending softly through the ingredients.

Description

The recipe starts by layering frozen hash browns at the base of the slow cooker, followed by diced onions and bell peppers for sweetness and texture. Cooked crumbled turkey sausage is layered next with shredded cheddar cheese. A mixture of beaten eggs, milk, kosher salt, black pepper, mustard powder, garlic powder, and optional red pepper flakes is poured evenly over the layers.

Cooking on low for 8–9 hours overnight allows the eggs to set around the ingredients, melding their flavors, producing a cohesive, savory casserole suitable for breakfast or brunch. The texture is soft but structured, with tender potatoes and pockets of melted cheese and sausage throughout.

Optional toppings such as extra cheese, diced tomatoes or salsa, sour cream or Greek yogurt, diced avocado, green onions, cilantro or parsley, and hot sauce provide fresh accents and variation when serving. This dish can accommodate substitutions such as pork sausage, ham, or bacon, and milk alternatives.

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Ingredients

Servings
  • 1 lb. potato diced or shredded, frozen hash brown, bagged
  • 1 cup onion diced small
  • 1 ½ cups bell pepper any color or a mix, diced small
  • 1 lb. turkey sausage hot or mild, cooked and crumbled
  • 1 ½ cups cheddar cheese shredded
  • 12 egg large
  • ¾ cup milk
  • 1 teaspoon kosher salt
  • ½ teaspoon black pepper
  • ½ teaspoon mustard powder ground
  • ¼ teaspoon garlic powder
  • ¼ teaspoon red pepper flakes optional

Topping ideas:

  • cheese extra shredded
  • diced tomatoes or salsa
  • sour cream or Greek yogurt
  • avocado diced
  • green onion chopped
  • cilantro or parsley, chopped fresh
  • hot sauce

Instructions

  1. Place the frozen hash brown potatoes in the bottom of your slow cooker. (I don’t use cooking spray but you can if you’re worried yours might stick.)
  2. Place the chopped onion and peppers on top of the potatoes.
  3. Next, layer the cooked sausage in the crock pot and top with the shredded cheese.
  4. In a medium bowl, whisk together the eggs and remaining ingredients (but not the toppings).
  5. Pour the egg mixture over the other ingredients in the slow cooker.
  6. Put the lid on and cook for 8-9 hours on low.
  7. Serve with desired toppings and enjoy!

Notes

  • If using thawed hash browns, reduce cooking time to 7-8 hours on low to prevent overcooking.
  • Protein can be swapped for pork sausage, diced ham, or crumbled bacon depending on preference.
  • Use skim or 2% milk, milk substitutes, or half-and-half for different richness levels in the egg mixture.
  • Optional toppings brighten the dish and add fresh contrasting flavors and textures.

Nutrition Information

Show Details
Calories 345kcal (17%) Carbohydrates 15g (5%) Protein 26g (52%) Fat 19g (29%) Saturated Fat 8g (40%) Cholesterol 312mg (104%) Sodium 877mg (37%) Potassium 540mg (11%) Fiber 1g (4%) Sugar 3g (6%) Vitamin A 1540IU (31%) Vitamin C 43.1mg (48%) Calcium 239mg (24%) Iron 2.7mg (15%)

Nutrition Facts

Serving: 8Serving

Amount Per Serving

Calories 345 kcal

% Daily Value*

Calories 345kcal 17%
Carbohydrates 15g 5%
Protein 26g 52%
Fat 19g 29%
Saturated Fat 8g 40%
Cholesterol 312mg 104%
Sodium 877mg 37%
Potassium 540mg 11%
Fiber 1g 4%
Sugar 3g 6%
Vitamin A 1540IU 31%
Vitamin C 43.1mg 48%
Calcium 239mg 24%
Iron 2.7mg 15%

* Percent Daily Values are based on a 2,000 calorie diet.

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