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Easy Make-Ahead Breakfast Casserole Recipe

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4 from 83 reviews

  • Author: Jane
  • Total Time: 1 hr 5 mins
  • Yield: 8 servings

Description

A hearty and versatile make-ahead breakfast casserole featuring eggs, hash browns, cheese, and your choice of breakfast sausage or vegetables. This dish is perfect for holidays, meal prep, or feeding a large crowd, offering a comforting and satisfying start to your day.

Ingredients

Egg Mixture

  • 8 large eggs
  • 2 cups milk
  • Salt and pepper to taste

Main Ingredients

  • 1 bag (20 oz) frozen hash browns
  • 1 lb breakfast sausage or 1 lb bacon (optional)
  • ½ onion, diced
  • 1 cup shredded cheddar cheese

Instructions

  1. Brown sausage and sauté onion: In a skillet over medium heat, cook the breakfast sausage until browned and cooked through. Remove excess grease if necessary, then add diced onion and sauté until translucent and soft, about 3-5 minutes. If using bacon, cook until crispy and crumble.
  2. Mix eggs and milk: In a large bowl, whisk together the eggs, milk, salt, and pepper until fully combined and smooth.
  3. Layer casserole: Grease a 9×13-inch baking dish. Spread the frozen hash browns evenly across the bottom. Then layer the cooked sausage and sautéed onions evenly over the hash browns. Sprinkle the shredded cheddar cheese on top of the sausage layer.
  4. Pour egg mixture: Carefully pour the prepared egg and milk mixture over the layered ingredients, making sure it covers evenly.
  5. Chill or bake: Cover the dish with foil and refrigerate overnight to allow the flavors to meld and for a convenient make-ahead option. Alternatively, proceed to bake immediately.
  6. Bake: Preheat your oven to 350°F (175°C). Bake the casserole, covered with foil, for 45-55 minutes until the eggs are fully set and the top is lightly golden.
  7. Serve: Remove from oven, let it cool for a few minutes, then cut into squares and serve warm. Ideal for Christmas morning, brunch gatherings, or any breakfast occasion.

Notes

  • You can substitute the sausage with spinach, mushrooms, or bell peppers for a vegetarian-friendly version.
  • This casserole is freezer-friendly both before and after baking—wrap well to maintain freshness.
  • Perfect for holiday mornings, brunch parties, or meal prepping for busy weekdays.
  • Prep Time: 15 mins
  • Cook Time: 50 mins
  • Category: Breakfast, Casserole
  • Method: Baking
  • Cuisine: American

Find it online: https://cookingmomy.com/easy-make-ahead-breakfast-casserole-recipe/