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Breakfast · Part 2 of 3: Instructions

Easy Cheesy Sausage Hash Brown Breakfast Casserole Step-by-step instructions

A golden-brown breakfast casserole in a white dish with melted cheese and sausage.
Prep
Cook
Total
Serves
8
Includes 5 min resting

Before you start

Before beginning, ensure all ingredients are measured and ready. If the sausage is sold in casings, remove them before browning. Preheat the oven to 375°F (190°C) early so it reaches the correct temperature by the time the assembly is complete.

Have the baking dish greased and set aside on a stable surface. Keep the eggs at room temperature for about 10 minutes to ensure they whisk together smoothly, which helps in creating a uniform consistency.

Ingredients at a glance (5)
  • 1 lb ground pork sausage
  • 30 oz frozen hash brown potatoes
  • 8 large eggs
  • 2 cups shredded cheddar cheese
  • 1/4 cup sliced green onions

Instructions

Sausage Preparation

  1. Brown the sausage
    Heat a large skillet over medium-high heat. Add the ground pork sausage and cook, breaking it apart with a spatula, until it is fully browned and reaches an internal temperature of 160°F (71°C). Drain any excess grease from the pan and remove from heat.
    Look for The meat should be browned and cooked through with no pink remaining.
    Safe temperature 160°F (71°C) internal temperature (ground meat)
    Tip Ensure the sausage is broken into small, uniform crumbles to distribute flavor evenly throughout the final casserole.

The sausage is fully browned and crumbly, with all pink color gone. The skillet smells savory and the meat is ready to be layered. Ensure all excess grease has been drained from the pan to maintain the desired texture of the final dish.

Assembly and Custard

  1. Assemble the casserole
    Preheat your oven to 375°F (190°C). Grease a 9x13-inch baking dish. Spread the frozen hash brown potatoes evenly across the bottom of the dish. Layer the cooked ground sausage over the hash browns. In a large bowl, whisk the eggs until well combined, then pour this mixture evenly over the layers in the baking dish.
    Look for Ensure the egg mixture reaches all corners of the dish to bind the ingredients together.
    Tip If the hash browns are clumped together, break them up with your hands before spreading them into the dish for even cooking.

The hash browns are spread evenly in the bottom of the baking dish, topped with the cooked sausage. The eggs are well-whisked and poured evenly over the layers. The dish is ready for the oven with all components distributed to ensure a consistent bake.

Baking and Finishing

  1. Bake and serve
    Place the baking dish in the preheated oven and bake for 30 minutes. Remove the dish, sprinkle the shredded cheddar cheese over the top, and return to the oven for an additional 10 to 15 minutes, or until the eggs reach 160°F (71°C). Garnish with sliced green onions before serving.
    Look for The cheese should be bubbly and golden brown, and the eggs should be fully set.
    Safe temperature 160°F (71°C) internal temperature (egg dishes)
    Tip Let the casserole rest for at least 5 minutes before slicing to ensure clean servings and a perfect cheese pull.

The casserole has baked until the eggs are set and the cheese is melted and bubbling. The aroma is rich and savory. A quick check shows the center is firm, and the dish is ready to be garnished with green onions and served warm.

Common mistakes

A common mistake is using hash browns that are still frozen solid or clumping them too densely in the dish, which prevents the egg mixture from seeping through to the bottom.

Another error is failing to drain the rendered fat from the sausage after browning, which leads to an overly greasy casserole.

Ensure the oven is fully preheated before inserting the dish, as a cold oven will result in uneven cooking and rubbery eggs that fail to set properly.

How to tell it’s done

The casserole is done when the center is firm to the touch and the internal temperature of the egg mixture reaches 160°F (71°C). The edges should be slightly browned and pulling away from the sides of the baking dish.

The cheese on top must be fully melted, bubbly, and showing light golden spots. If the center still wobbles significantly, continue baking for another few minutes until the eggs are set throughout.

  • Ground meat: 160°F (71°C) in the thickest part
  • Egg dishes: 160°F (71°C) in the thickest part

Coming up in Part 3: common questions

  • Can this casserole be made ahead of time?
  • What is the best way to reheat leftovers?
  • Can frozen hash browns be used without thawing?

Also in Part 3: variations (Vegetable Loaded, Spicy Kick), storage and make-ahead, and the printable recipe card.

Up next · Part 3 of 3

2 variations · storage & make-ahead · 3 answers · printable card

Tips, FAQ & printable recipe (Part 3)← Back to the ingredients (Part 1)