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Make Ahead Breakfast Casserole on a white plate with apples

Make Ahead Breakfast Casserole

Jennie Duncan
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. 
Prep Time 15 mins
Cook Time 1 hr
Total Time 1 hr 15 mins
Course Breakfast
Cuisine American
Servings 10 servings
Calories 327 kcal


  • 1 pound ground breakfast sausage
  • 20 oz shredded hash brown potatoes (frozen)
  • 10 eggs
  • 1 ½ cup milk
  • ¼ teaspoons salt (or to taste)
  • ¼ teaspoons pepper (or to taste)
  • 1 cup onion (diced)
  • 1 cup bell pepper (diced)
  • 1 cup cheddar cheese (shredded)
  • ¼ cup green onions (option for garnish)


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


 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.


Calories: 327kcalCarbohydrates: 15gProtein: 18gFat: 22gSaturated Fat: 9gCholesterol: 212mgSodium: 509mgPotassium: 456mgFiber: 1gSugar: 3gVitamin A: 936IUVitamin C: 26mgCalcium: 164mgIron: 2mg
Keyword Make Ahead Breakfast Casserole
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