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A baked Family Favorite Make Ahead Breakfast Casserole in a dish, ready to serve.

Hearty Make-Ahead Sausage & Cheddar Breakfast Casserole

This hearty make-ahead breakfast casserole is perfect for feeding a crowd or for easy meal prep. With savory sausage, sharp cheddar, and eggy bread, it's a delicious and satisfying way to start your day.
Prep Time 20 minutes
Cook Time 1 hour
Total Time 1 hour 20 minutes
Servings 8 servings
Calories 400 kcal

Equipment

  • large skillet
  • 9x13 inch baking dish
  • large bowl

Ingredients
  

Main Ingredients

  • 1 lb breakfast sausage
  • 1 loaf day-old bread (about 12-16 slices)
  • 2 cups shredded cheddar cheese
  • 10 large eggs
  • 2 cups milk (any kind)
  • 1 teaspoon salt
  • ½ teaspoon black pepper
  • ½ teaspoon garlic powder
  • ¼ teaspoon onion powder
  • ½ cup chopped bell peppers, onions, or mushrooms, sautéed Optional

Instructions
 

Preparation

  • Cook the breakfast sausage in a large skillet until no longer pink, then drain excess grease and set aside.
  • Tear or cube the bread into bite-sized pieces and spread them evenly in a greased 9x13 inch baking dish.
  • Sprinkle the cooked sausage and optional sautéed vegetables over the bread, then top with shredded cheese.
  • In a large bowl, whisk together the eggs, milk, salt, pepper, garlic powder, and onion powder until well combined.
  • Pour the egg mixture over the bread, meat, and cheese, ensuring all bread pieces are saturated.
  • Cover the baking dish tightly with plastic wrap and refrigerate for at least 4 hours, or preferably overnight.

Baking

  • Preheat your oven to 375°F (190°C), then remove the casserole from the refrigerator and uncover.
  • Bake for 50-60 minutes, or until the casserole is set, golden brown, and a knife inserted in the center comes out clean.
  • Let the casserole sit for 5-10 minutes before slicing and serving.

Notes

For best results, allow the casserole to chill overnight. This gives the bread ample time to soak up the egg mixture, resulting in a more flavorful and cohesive casserole. You can also customize this casserole with various vegetables or different types of cheese to suit your taste.