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Make Ahead Breakfast Casserole on a white plate with apples

Make Ahead Breakfast Casserole

Prepare it all the night before and just pop it in the oven in the morning. This Make Ahead Breakfast Casserole is perfect for busy mornings and one of my favorite breakfast recipes. 

Course Breakfast
Cuisine American
Keyword Make Ahead Breakfast Casserole
Prep Time 15 minutes
Cook Time 1 hour
Total Time 1 hour 15 minutes
Servings 10 servings
Calories 327 kcal
Author Jennie Duncan


  • 1 pound ground breakfast sausage
  • 20 oz shredded hash brown potatoes (frozen)
  • 10 eggs
  • 1 1/2 cup milk
  • 1/4 teaspoons salt (or to taste)
  • 1/4 teaspoons pepper (or to taste)
  • 1 cup onion (diced)
  • 1 cup bell pepper (diced)
  • 1 cup cheddar cheese (shredded)
  • 1/4 cup green onions (option for garnish)


  1. Cook ground breakfast sausage on the stove top. Drain fat then place it into a casserole dish. Add potatoes to the casserole dish and mix. 

  2. In a separate bowl whisk together eggs, milk, salt, and pepper. Pour into the casserole dish. Add diced peppers and onions and mix until all ingredients are well combined. 

  3. Top with cheese and cover with foil. Place in the fridge over night. 

  4. The next morning preheat your oven to 350 degrees. Remove foil and bake for 50-60 minutes or until cooked through and eggs are firm. Serve garnished with diced green onions. 

Recipe Notes

 Can this Make-Ahead Breakfast Casserole be frozen:

This recipe can be frozen but you will need to bake it first. Once baked and cooled place in a freezer bag or airtight container and freeze for up to 2 months. Reheat by microwaving squares or baking in the oven until warm throughout, about 35-45 minutes.

What size casserole dish:

For this recipe, I used a 9x13 casserole dish.

Nutrition Facts
Make Ahead Breakfast Casserole
Amount Per Serving
Calories 327 Calories from Fat 198
% Daily Value*
Fat 22g34%
Saturated Fat 9g45%
Cholesterol 212mg71%
Sodium 509mg21%
Potassium 456mg13%
Carbohydrates 15g5%
Fiber 1g4%
Sugar 3g3%
Protein 18g36%
Vitamin A 936IU19%
Vitamin C 26mg32%
Calcium 164mg16%
Iron 2mg11%
* Percent Daily Values are based on a 2000 calorie diet.