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A golden-baked breakfast casserole filled with eggs, sausage, bell peppers, and melted cheddar cheese, served in a rustic dish.

Breakfast Casserole Recipe – Easy Make-Ahead Brunch with Eggs, Sausage & Cheese

This Breakfast Casserole Recipe is the ultimate morning crowd-pleaser—packed with protein, flavor, and comfort. Made with eggs, sausage, cheddar cheese, and colorful bell peppers, it’s baked until golden and bubbly. Perfect for holidays, brunches, or busy weekdays, this casserole can be prepped ahead and reheated with ease. Whether you're feeding a family or hosting guests, it’s a satisfying dish that’s simple to make and guaranteed to impress.
Prep Time 20 minutes
Cook Time 55 minutes
Total Time 1 hour 20 minutes
Course Breakfast, Brunch
Cuisine American
Servings 10
Calories 300 kcal

Equipment

  • Large mixing bowl
  • Whisk
  • Measuring Cups and Spoons
  • 9x13-inch baking dish
  • Skillet (for sautéing veggies/meat)
  • Oven

Ingredients
  

  • 8 large eggs
  • 1½ cups milk (whole or 2%)
  • 1 tsp salt
  • ½ tsp black pepper
  • 3 cups hash browns or bread cubes
  • 1½ cups cooked sausage, bacon, or ham
  • 1 cup sautéed vegetables (onions, peppers, spinach, mushrooms)
  • 1½ cups shredded cheese (cheddar, mozzarella, or pepper jack)
  • Optional: herbs, hot sauce, cream cheese, or biscuit dough

Instructions
 

  • Preheat oven to 350°F (175°C). Grease a 9x13-inch baking dish.
  • Whisk eggs and milk with salt, pepper, and optional spices.
  • Layer ingredients in the dish: starch, meat, veggies, and cheese.
  • Pour egg mixture evenly over the layers. Press gently to coat.
  • Bake uncovered for 45–55 minutes, until the center is set and top is golden.
  • Cool for 10–15 minutes before slicing and serving.

Notes

  • Use pre-cooked meats and sautéed veggies to avoid excess moisture.
  • For a low-carb version, skip the starch and add more vegetables.
  • Make ahead: assemble the night before and bake fresh in the morning.
  • Freeze slices individually for easy reheating.
  • Try flavor variations like Southwestern (black beans, jalapeños) or Mediterranean (feta, spinach, sun-dried tomatoes).
Keyword brunch, casserole, eggs, holiday breakfast, make-ahead, meal prep