Sausage, Egg and Hash Brown Breakfast Casserole

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A warm, cheesy, and deeply satisfying way to start the day, this Sausage, Egg and Hash Brown Breakfast Casserole is a comforting classic. Whether you’re hosting brunch, meal prepping for a busy week, or enjoying a cozy weekend at home, this recipe delivers bold, savory flavors wrapped in a melty, golden-brown top layer. It’s a hearty one-dish meal that blends the best breakfast ingredients into one irresistible bite.

What makes this casserole so beloved is its adaptability and ease. Ground sausage brings bold seasoning, eggs deliver a rich and creamy base, and hash browns add that irresistible potato texture that ties everything together. With just a few fresh veggies, cheese, and pantry staples, you’ll have a bubbling casserole that feeds a crowd and leaves your kitchen smelling like a breakfast dream.

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Preparation Phase & Tools to Use

To make the perfect Sausage, Egg and Hash Brown Breakfast Casserole, having the right tools makes all the difference:

• 9×13-inch Baking Dish: This size ensures even cooking and plenty of space for layering ingredients without overflow.
• Large Skillet: Essential for browning the sausage and sautéing any veggies. Choose one with a heavy bottom to retain heat evenly.
• Mixing Bowls: You’ll need a couple of bowls for whisking eggs and mixing ingredients. Glass or stainless steel bowls work best for easy cleanup.
• Whisk or Fork: To beat the eggs until fluffy. A whisk helps incorporate air, which keeps the casserole light.
• Box Grater (if shredding cheese yourself): Freshly grated cheese melts smoother and tastes better.
• Spatula or Wooden Spoon: For stirring and transferring ingredients.

Having your tools prepped and ingredients measured ahead of time makes the assembly process smooth and efficient. It’s a recipe that rewards a little prep with maximum flavor and ease of baking.

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Ingredients for the Sausage, Egg and Hash Brown Breakfast Casserole

Each ingredient in this casserole plays a crucial role in delivering its signature flavor and texture:

• Ground Breakfast Sausage: This brings the bold, savory flavor that forms the heart of the dish. Choose mild or spicy depending on your taste.
• Frozen Hash Browns: A convenient base layer that adds hearty texture and soaks up all the delicious eggy goodness.
• Eggs: The binding ingredient that holds the casserole together and creates that fluffy, satisfying bite.
• Milk: Adds creaminess and helps the eggs bake into a smooth custard-like texture.
• Cheddar Cheese: Melty, sharp, and golden when baked, cheddar ties the flavors together.
• Bell Peppers: Red and green peppers add crunch, color, and a hint of sweetness.
• Green Onions: For a fresh, slightly tangy bite to balance the richness.
• Salt & Pepper: Essential seasonings that enhance every bite.
• Garlic Powder (optional): Adds depth and warmth without overpowering the dish.

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How To Make the Sausage, Egg and Hash Brown Breakfast Casserole

Step 1: Cook the Sausage

In a large skillet over medium heat, cook the breakfast sausage until fully browned and no longer pink. Break it apart with a wooden spoon as it cooks. Drain excess grease and set aside.

Step 2: Sauté the Veggies

In the same skillet, add a touch of oil if needed, then sauté chopped bell peppers and green onions until just softened. This brings out their natural sweetness and enhances texture.

Step 3: Layer the Base

Grease a 9×13-inch baking dish. Spread the frozen hash browns evenly across the bottom. Top with the cooked sausage and sautéed veggies.

Step 4: Make the Egg Mixture

In a large bowl, whisk together the eggs, milk, salt, pepper, and optional garlic powder until smooth and well combined.

Step 5: Assemble the Casserole

Pour the egg mixture evenly over the layered ingredients in the baking dish. Sprinkle the shredded cheddar cheese generously over the top.

Step 6: Bake to Perfection

Preheat your oven to 375°F (190°C). Bake the casserole uncovered for 40–45 minutes or until the eggs are fully set and the top is golden brown.

Let it cool for 5–10 minutes before slicing. Serve warm!

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How to Serve and Store This Sausage, Egg and Hash Brown Breakfast Casserole

This breakfast casserole is best served warm, straight from the oven when the cheese is bubbly and golden. It pairs beautifully with fresh fruit, a dollop of sour cream, or even a splash of hot sauce for a spicy twist. For brunch gatherings, serve it alongside muffins, toast, or a light green salad to round out the meal.

When it comes to storing leftovers, this dish holds up wonderfully. Let it cool completely before transferring to an airtight container. It can be stored in the refrigerator for up to 4 days. To reheat, simply microwave individual portions for 1-2 minutes or warm larger portions in the oven at 350°F until heated through.

For longer storage, freeze slices individually wrapped in foil or parchment paper, then placed in a freezer-safe bag. They can be frozen for up to 2 months. Reheat straight from frozen in the microwave or oven for a convenient grab-and-go breakfast.

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Frequently Asked Questions

Can I make this casserole the night before?

Absolutely! Assemble everything, cover tightly with foil or plastic wrap, and refrigerate overnight. In the morning, just pop it in the oven to bake.

Can I use fresh potatoes instead of frozen hash browns?

Yes, you can. Just shred and squeeze out any excess moisture from the potatoes using a clean towel before layering them into the casserole.

What kind of sausage works best?

Breakfast sausage (either pork or turkey) works great, but you can also use Italian sausage for a more herbaceous twist. Spicy sausage adds an extra kick if you like heat.

Can I make it dairy-free?

Yes! Use your favorite non-dairy milk and cheese alternatives. Just ensure they melt and set similarly to dairy products.

How do I know when the casserole is done baking?

The center should be set and not jiggle when shaken gently. A knife inserted in the middle should come out clean, and the top should be golden and slightly crisp.

Can I add other vegetables?

Definitely! Mushrooms, spinach, or diced tomatoes can be great additions. Just make sure to cook out any excess moisture so the casserole doesn’t get soggy.

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Want More Breakfast Ideas with a Hearty Twist?

If you love this Sausage, Egg and Hash Brown Breakfast Casserole, you’ll probably enjoy these other filling and flavorful options from Life With Olivia:

• Make-Ahead Eggs Benedict Casserole for a creamy, brunch-ready bake.
• Cottage Cheese Egg Bites Recipe packed with protein and quick to reheat.
• Best Fluffy Pancake Recipe to add a sweet and airy side.
• Mississippi Sin Quiche if you’re in the mood for cheesy indulgence.
• Cheesy Ranch Potatoes as a perfect complement to any breakfast plate.

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Save This Recipe for Later

📌 Save this recipe to your Pinterest breakfast board so you can come back to it any time.

And let me know in the comments how yours turned out. Did you add mushrooms? Swap in turkey sausage? Maybe even top it with extra cheese?

I love hearing how others make these recipes their own. Questions are always welcome too – let’s make breakfast better, together.

For more cozy, satisfying breakfast ideas, check out my Pinterest: Life With Olivia on Pinterest

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