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Cheesy sausage egg and hash brown breakfast casserole baked until golden brown in a white casserole dish with green onions on top and a slice removed to show fluffy eggs, sausage, potatoes, and melted cheese.
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Sausage Egg and Cheese Hash Brown Bake

This Sausage Egg and Cheese Hash Brown Bake is the ultimate hearty breakfast casserole packed with crispy hash browns, savory sausage, fluffy eggs, and melty cheese. Perfect for brunch, holidays, meal prep, or busy mornings, this comforting breakfast bake has crispy golden edges and a creamy, cheesy center that slices beautifully.
Course Breakfast, Brunch
Cuisine American
Keyword breakfast casserole, cheesy hash brown casserole, cheesy sausage hash brown bake, easy brunch casserole, hash brown egg bake, holiday breakfast bake, make-ahead breakfast casserole, sausage breakfast casserole, sausage egg and cheese hash brown bake, sausage egg casserole
Prep Time 20 minutes
Cook Time 45 minutes
Total Time 1 hour 5 minutes
Servings 8 servings
Calories 420kcal
Cost $16 for entire recipe

Equipment

  • 9×13-inch baking dish
  • Large skillet
  • Large mixing bowl
  • Whisk
  • Measuring cups and spoons
  • Spatula
  • Cheese grater
  • paper towels
  • Knife and cutting board

Ingredients

For the Hash Brown Layer

  • 1 20 ounce bag frozen shredded hash browns, thawed and dried very well
  • 2 tablespoons melted butter
  • 1 teaspoon garlic powder
  • 1/2 teaspoon smoked paprika
  • 3/8 teaspoon kosher salt

For the Sausage Layer

  • 1 pound breakfast sausage
  • 1/2 small yellow onion finely diced

For the Egg Mixture

  • 8 large eggs
  • 3/4 cup whole milk
  • 2 tablespoons sour cream
  • 3/8 teaspoon kosher salt
  • 1/2 teaspoon black pepper
  • 1 teaspoon Worcestershire sauce

Cheese

  • 1 1/4 cups freshly shredded sharp cheddar cheese divided
  • 1/2 cup Monterey Jack cheese

Garnish

  • Sliced green onions

Instructions

Step 1: Prepare the Oven

  • Preheat the oven to 375°F. Grease a 9x13-inch baking dish.

Step 2: Cook the Sausage

  • Cook the sausage and diced onion in a large skillet over medium heat until browned and fully cooked. Break the sausage into crumbles while cooking. Drain the excess grease thoroughly and allow the mixture to cool slightly.

Step 3: Pre-Bake the Hash Browns

  • In a large bowl, toss the hash browns with the melted butter, garlic powder, smoked paprika, and 3/8 teaspoon kosher salt until evenly coated. Spread the potatoes evenly into the prepared baking dish. Bake for 10–12 minutes to lightly crisp and dry the potatoes.

Step 4: Add the Sausage and Cheese

  • Remove the baking dish from the oven. Sprinkle the cooked sausage mixture evenly over the potatoes. Top with 1 cup of the cheddar cheese and all of the Monterey Jack cheese.

Step 5: Make the Egg Mixture

  • In a large bowl, whisk together the eggs, whole milk, sour cream, remaining 3/8 teaspoon kosher salt, black pepper, and Worcestershire sauce until smooth and fully combined.

Step 6: Assemble the Casserole

  • Pour the egg mixture evenly over the casserole. Sprinkle the remaining 1/4 cup cheddar cheese evenly over the top.

Step 7: Bake

  • Bake uncovered for 28–35 minutes, or until the center is set but still soft and the edges are lightly golden brown. A knife inserted near the center should come out mostly clean. If the top begins browning too quickly, loosely tent with foil during the final minutes of baking.

Step 8: Rest and Serve

  • Allow the casserole to rest for 10 minutes before slicing. Garnish with sliced green onions before serving.

Notes

🥔 Use Fully Thawed Hash Browns

For the best sausage egg and cheese hash brown bake texture, make sure the frozen hash browns are completely thawed and dried thoroughly before baking. Excess moisture can make the casserole watery or soggy. Pre-baking the potatoes also helps create crispier edges and a more flavorful breakfast casserole.

🧀 Freshly Shredded Cheese Works Best

Freshly shredded cheese melts more smoothly and evenly than pre-shredded cheese. Sharp cheddar gives this cheesy hash brown casserole a richer flavor, while Monterey Jack adds a creamy texture that balances the eggs and sausage perfectly.

🍳 Avoid Overbaking the Eggs

The casserole should be removed from the oven when the center is just set but still slightly soft. The eggs will continue cooking as the casserole rests. Overbaking can cause the eggs to become rubbery instead of fluffy and creamy.

🌙 Great Make-Ahead Breakfast Casserole

This sausage breakfast casserole is perfect for overnight prep. Assemble the casserole the night before, cover tightly, and refrigerate overnight. Bake fresh the next morning for an easy holiday breakfast, weekend brunch, or meal prep breakfast casserole.

🌶️ Easy Flavor Variations

You can customize this hash brown egg bake with ingredients like crispy bacon, diced jalapeños, green chiles, mushrooms, spinach, or bell peppers. Hot breakfast sausage or pepper jack cheese also adds extra spice and savory flavor.

🧊 Storage and Reheating Tips

Store leftover breakfast casserole covered in the refrigerator for up to 4 days. Reheat individual slices in the microwave or oven until warmed through. This cheesy sausage hash brown bake also freezes well for easy breakfasts later.