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Egg Breakfast Casserole Recipe

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4.3 from 87 reviews

A hearty breakfast casserole made with savory sausage, fluffy eggs, cheese, and bread — the perfect make-ahead dish for holiday mornings or brunch gatherings.

  • Total Time: 55 mins
  • Yield: 8 servings

Ingredients

Meat

  • 1 lb breakfast sausage

Egg Mixture

  • 8 large eggs
  • 2 cups milk
  • 1 tsp mustard powder
  • Salt & pepper to taste

Base and Cheese

  • 6 cups cubed bread
  • 1½ cups shredded cheese (cheddar or mozzarella)

Instructions

  1. Cook the Sausage: In a skillet over medium heat, cook and crumble the breakfast sausage until fully cooked and browned. Drain any excess fat to prevent greasiness in the casserole.
  2. Prepare the Egg Mixture: In a large bowl, whisk together the eggs, milk, mustard powder, salt, and pepper until well combined and slightly frothy to ensure even mixing.
  3. Assemble the Casserole: In a greased baking dish, layer the cubed bread evenly on the bottom, then spread the cooked sausage over the bread. Sprinkle the shredded cheese atop the sausage layer.
  4. Add Egg Mixture: Pour the prepared egg mixture evenly over the layered bread, sausage, and cheese ensuring all pieces are moistened.
  5. Refrigerate or Bake: For best flavor and texture, cover the dish and refrigerate overnight to allow the bread to soak up the egg mixture. When ready, bake at 350°F (175°C) for 35–40 minutes until the eggs are set and the top is golden brown. Alternatively, bake immediately for the same duration if short on time.

Notes

  • Can be made ahead and refrigerated overnight for convenience and enhanced flavor.
  • Add spinach, bell peppers, or bacon to customize the casserole and add extra nutrition.
  • Author: Jessica
  • Prep Time: 15 mins
  • Cook Time: 40 mins
  • Category: Breakfast, Brunch
  • Method: Baking
  • Cuisine: American
  • Diet: High Protein