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Hashbrown Breakfast Casserole

Hashbrown Breakfast Casserole


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  • Author: Leslie Bennett
  • Total Time: 65–75 minutes
  • Yield: 1012 servings 1x
  • Diet: Vegetarian

Description

A hearty, comforting breakfast casserole made with crispy hashbrowns, savory sausage, fluffy eggs, and melted cheese. Perfect for brunches, busy mornings, or feeding a crowd, and easily customizable for various dietary needs.


Ingredients

Scale

Base

  • 28 oz shredded hashbrowns, thawed and patted dry
  • 2 tablespoons melted butter (drizzled over hashbrowns)

Sausage & Vegetables

  • 1 pound ground breakfast sausage (e.g., Jimmy Dean)
  • ½ small yellow onion, finely diced
  • ½ red bell pepper, diced
  • ½ green bell pepper, diced

Cheese

  • 2 cups shredded cheddar cheese, divided

Egg Mixture

  • 12 large eggs
  • 1 cup sour cream
  • ¾ cup milk
  • 1 teaspoon hot sauce
  • ½ teaspoon mustard powder
  • ¼ teaspoon dried oregano
  • ¼ teaspoon dried thyme
  • ¼ teaspoon ground sage
  • ½ teaspoon salt
  • ¼ teaspoon black pepper

Optional Substitutions

  • Plant-based sausage
  • Dairy-free cheese
  • Gluten-free seasonings
  • Vegan chickpea flour “egg” mixture
  • Cauliflower rice or zucchini slices instead of hashbrowns

Instructions

  1. Preheat oven to 350°F (175°C). Lightly grease a 9×13-inch baking dish.
  2. Cook sausage in a skillet over medium-high heat until browned. Add onions and peppers during the last 3 minutes. Drain grease and set aside.
  3. In a medium bowl, beat the eggs. Add sour cream, milk, hot sauce, and all seasonings; whisk until smooth.
  4. Add thawed hashbrowns to the prepared baking dish. Drizzle with melted butter and toss to coat evenly.
  5. Sprinkle 1 cup of cheddar cheese over the hashbrowns.
  6. Spread the cooked sausage and vegetables evenly over the top.
  7. Pour the egg mixture evenly over the casserole.
  8. Top with the remaining 1 cup of cheese.
  9. Bake uncovered for 50 minutes. After that, check every 5 minutes; the casserole is done when edges are slightly browned and the center is almost set.
  10. Let rest for 10 minutes before slicing and serving.

Notes

  • Fully thaw and pat hashbrowns dry for the best texture.
  • Let casserole rest before slicing for clean, firm servings.
  • Add spices like smoked paprika or red pepper flakes for extra depth.
  • Add-ins like tomatoes, roasted garlic, or spinach work well.
  • Make ahead: assemble the night before and bake in the morning.
  • Storage: 3 days in fridge, 3 months in freezer.
  • Prep Time: 15 minutes
  • Cook Time: 50–60 minutes
  • Category: Breakfast / Brunch / Casserole
  • Method: Baking
  • Cuisine: American

Nutrition

  • Serving Size: 1 piece (approx. 1/12 of dish)
  • Calories: 340
  • Sugar: 2 g
  • Sodium: 620 mg
  • Fat: 24 g
  • Saturated Fat: 10 g
  • Unsaturated Fat: 12 g
  • Trans Fat: 0 g
  • Carbohydrates: 14 g
  • Fiber: 1 g
  • Protein: 18 g
  • Cholesterol: 215 mg