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breakfast casserole with sausage
Isla Marie

Breakfast Casserole with Sausage

This breakfast casserole with sausage is a filling, comforting dish made with savory sausage, fluffy eggs, melted cheese, and a hearty base. It’s perfect for busy mornings, weekend brunch, or feeding a crowd, and it can be prepared ahead of time for extra convenience.
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Prep Time 15 minutes
Cook Time 45 minutes
Total Time 1 hour
Servings: 8 people
Course: Breakfast, Brunch
Cuisine: American
Calories: 420
Ingredients Equipment Method Notes

Ingredients
  

Main Ingredients
  • 1 lb breakfast sausage pork or turkey, cooked and crumbled
  • 8 large eggs
  • 2 cups milk or half-and-half
  • 3 cups cubed bread or frozen hash browns
  • 1½ cups shredded cheese cheddar, Colby Jack, or blend
  • 1/2 teaspoon salt
  • 1/2 teaspoon black pepper
Optional Add-Ins
  • 1/2 cup diced onion
  • 1/2 cup bell peppers
  • 1/2 teaspoon garlic powder
  • 1/2 teaspoon paprika
  • Fresh herbs for garnish

Equipment

  • Large skillet (for cooking sausage)
  • Mixing bowl
  • Whisk
  • 9×13-inch baking dish
  • Measuring cups & spoons

Method
 

Cook the Sausage
  1. Brown the sausage in a skillet over medium heat until fully cooked. Drain excess grease and set aside.
Prepare the Baking Dish
  1. Lightly grease a 9×13-inch baking dish to prevent sticking.
Add the Base Layer
  1. Spread cubed bread or hash browns evenly in the baking dish.
Layer Sausage and Cheese
  1. Sprinkle cooked sausage evenly over the base, followed by shredded cheese and any vegetables if using.
Mix the Egg Mixture
  1. In a bowl, whisk eggs, milk, salt, pepper, and seasonings until well combined.
Assemble the Casserole
  1. Pour the egg mixture evenly over the layered ingredients, making sure everything is coated.
Bake
  1. Bake at 375°F (190°C) for 40–45 minutes, until the center is set and the top is lightly golden.
Rest and Serve
  1. Let the casserole rest for 5–10 minutes before slicing and serving.

Notes

  • Can be assembled the night before and baked in the morning.
  • Always cook and drain sausage before using.
  • Bread creates a softer texture; potatoes make it heartier.
  • Let rest before slicing for clean portions.
  • Freezes and reheats well for meal prep.