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A golden brown breakfast casserole featuring hash browns and melted cheese

Supreme Hash Brown Breakfast Casserole

This Supreme Hash Brown Breakfast Casserole is packed with savory sausage, eggs, cheese, and vegetables. It's perfect for a weekend brunch or a holiday feast and can be made ahead of time for convenience.
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Prep Time 20 minutes
Cook Time 1 hour
Total Time 1 hour 20 minutes
Servings: 8 servings
Calories: 450
Ingredients Equipment Method Notes

Ingredients
  

Main Ingredients
  • 30 ounce frozen shredded hash browns thawed or frozen
  • 12 large eggs
  • ½ cup whole milk
  • 1 pound breakfast sausage cooked and crumbled
  • ½ cup chopped yellow onion
  • ½ cup chopped red bell pepper
  • 2 cups shredded sharp cheddar cheese
Seasoning
  • 1 teaspoon salt
  • ½ teaspoon black pepper
  • ¼ teaspoon garlic powder
  • red pepper flakes Optional: Pinch of
For Greasing
  • Cooking spray or butter Optional:

Equipment

  • Large Skillet
  • Large Bowl
  • 9x13 inch baking dish

Method
 

Preparation
  1. Cook the breakfast sausage in a large skillet over medium heat until browned and crumbled, then drain excess grease.
  2. In the same skillet, sauté the chopped onion and bell pepper until softened, about 5-7 minutes.
  3. In a large bowl, whisk together eggs, milk, salt, pepper, and garlic powder until well combined and slightly frothy.
Assembly
  1. Lightly grease a 9x13 inch baking dish; spread half of the hash browns evenly across the bottom, gently pressing them down.
  2. Sprinkle half of the cooked sausage and sautéed vegetables over the hash browns, then top with 1 cup of shredded cheddar cheese.
  3. Add the remaining hash browns, followed by the rest of the sausage and vegetables.
  4. Carefully pour the whisked egg mixture evenly over all layers and gently shake the dish to help the egg settle.
  5. Sprinkle the remaining 1 cup of shredded cheddar cheese over the top.
Baking
  1. Cover the casserole and refrigerate for at least 4 hours or preferably overnight; if baking immediately, proceed to the next step.
  2. Preheat oven to 375°F (190°C), and if chilled, remove casserole from fridge 30 minutes before baking.
  3. Bake uncovered for 45-60 minutes, or until eggs are set and top is golden brown; loosely tent with foil if browning too quickly.
Serving
  1. Let the casserole rest for 10-15 minutes before slicing and serving.

Notes

For best results, prepare the casserole the night before and let it chill in the refrigerator overnight. This allows the flavors to meld beautifully and reduces morning prep time.