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Hash Brown Breakfast Casserole

Golden brown hash brown breakfast casserole slice with sausage and peppers.

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This hearty breakfast casserole features a crispy golden hash brown crust filled with fluffy eggs, savory sausage, peppers, and melted cheese. It is perfect for a comforting weekend brunch or feeding a crowd with minimal effort. The recipe is easily adaptable for various dietary needs and can be prepared ahead of time.

Ingredients

Scale
  • 1 (30 oz) bag frozen shredded hash browns, thawed
  • 1/4 cup unsalted butter, melted
  • 1 tsp garlic powder
  • 1 tsp onion powder
  • 1/2 tsp smoked paprika
  • 1/2 tsp salt
  • 1/4 tsp black pepper
  • 1 tbsp olive oil
  • 1 medium yellow onion, diced
  • 1 bell pepper, diced
  • 8 oz breakfast sausage, cooked and crumbled
  • 1 1/2 cups shredded cheddar cheese, divided
  • 8 large eggs
  • 1 cup whole milk
  • 1 tsp dried mustard
  • 1/2 tsp salt
  • 1/4 tsp black pepper
  • Chopped fresh chives, for garnish

Instructions

  1. Preheat oven to 400°F. Grease a 9×13 inch baking dish.
  2. In a large bowl, mix thawed hash browns with melted butter, garlic powder, onion powder, smoked paprika, 1/2 tsp salt, and 1/4 tsp pepper. Press mixture firmly into bottom and up sides of prepared dish. Bake for 20-25 minutes until edges start to golden.
  3. While crust bakes, heat olive oil in a skillet over medium heat. Add diced onion and bell pepper. Cook for 8-10 minutes until softened.
  4. Remove crust from oven. Reduce oven temperature to 375°F. Layer cooked sausage and sautéed veggies over crust. Sprinkle with 1 cup of cheddar cheese.
  5. In the same large bowl, whisk eggs, milk, dried mustard, 1/2 tsp salt, and 1/4 tsp pepper until smooth. Pour evenly over layers in dish. Top with remaining 1/2 cup cheese.
  6. Bake at 375°F for 35-40 minutes, until center is set and top is golden brown.
  7. Let casserole rest for 10 minutes before slicing. Garnish with fresh chives and serve.

Notes

Thaw hash browns completely to avoid a soggy crust. The casserole can be assembled the night before and refrigerated; add 5-10 minutes to bake time. For a vegetarian version, omit sausage or use plant-based crumbles.

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