Best Breakfast Casserole with Hash Browns & Sausage | Easy & Cheesy

Best breakfast casserole with hash browns is your answer to a cozy, no-fuss breakfast or brunch the whole family will love. Packed with hearty hash browns, savory sausage, fluffy eggs, and gooey cheese, this dish delivers that perfect balance of comfort and flavor. Whether you’re hosting a holiday brunch or meal-prepping for busy mornings, this easy casserole is sure to impress (and it’ll keep you coming back for more).

When I first made this casserole, I was looking for something simple yet satisfying for a Sunday brunch gathering. Let me tell you—around 15 minutes of prep and one dish later, I was hooked. It’s perfect for those mornings when you want to feed a crowd without spending hours in the kitchen. Plus, the casserole is packed with everything you’d want in a classic breakfast—it’s basically a breakfast plate in one bite. Let’s dive into how you can make this family favorite in your kitchen!

How to Make the Best Breakfast Casserole with Hash Browns

This recipe breaks down into a few simple steps: layer your hash browns, prep a savory sausage mixture, whisk together egg goodness, and top it all off with plenty of cheese. This no-fuss dish comes together easily with minimal cleanup, especially if you pre-thaw your hash browns and get your ingredients prepped ahead of time.

Ingredients You’ll Need

Here’s your lineup for this easy hash brown breakfast casserole. These simple ingredients come together to make one incredibly delicious dish:

• 1 (2-pound) package frozen hash brown potatoes, thawed: These form the hearty base. Thaw them overnight in the fridge for quick assembly.
• 1 pound turkey sausage: Adds savory, bold flavor. You can swap in beef sausage or a plant-based option if you prefer.
• 1 small onion, diced: Brings a touch of sweetness and depth to the dish.
• 5 large eggs: The glue that holds everything together in delicious breakfast harmony.
• ½ cup milk: Whisked with the eggs to keep the casserole light and fluffy.
• ½ teaspoon onion powder and ⅛ teaspoon garlic powder: Add just the right hint of seasoning to the eggs.
• Salt and black pepper to taste: Adjust based on preference.
• 12 ounces shredded Cheddar cheese: Because let’s face it—cheese makes everything better. You can use mild or sharp, depending on your taste.

You’ll also need an 8×8-inch deep baking pan or, for a thinner casserole, a 9×13-inch pan.

Step-by-Step Instructions

Let’s get this sausage egg and hash brown bake in the oven pronto. Follow these easy steps:

1. Prepare the baking dish: Preheat the oven to 350°F (175°C). Grease a deep-sided 8×8-inch baking dish or, for a thinner casserole, use a 9×13-inch pan instead. Spread the thawed hash browns in an even layer.
2. Cook the sausage and onion: In a large skillet over medium heat, cook the sausage and diced onions until the sausage is browned and crumbled, about 10 minutes. Drain any excess grease and set aside.
3. Whisk the eggs and milk: In a large bowl, whisk together the eggs, milk, onion powder, garlic powder, salt, and pepper until smooth and well combined.
4. Assemble the casserole: Pour the egg mixture evenly over the hash browns in the baking dish. Sprinkle 6 ounces of Cheddar cheese over the top. Add the sausage and onion mixture in an even layer, then sprinkle with the remaining 6 ounces of cheese. Cover with aluminum foil.
5. Bake: Bake in the preheated oven for 1 hour. Remove the foil and continue baking for about 10 more minutes, or until a knife inserted in the center comes out clean.
6. Let it rest and serve: Allow the casserole to sit for 5 minutes before slicing and serving. Enjoy the cheesy, hearty deliciousness!

Jake’s Tips for Perfect Breakfast Casserole

Want to take your cheesy breakfast casserole with sausage to the next level? Here are my pro tips:

• Use a deep dish: This recipe fills an 8×8-inch pan to the brim. If your dish isn’t deep enough, go with a 9×13-inch pan for more space.
• Check baking time for adjustments: Using a larger pan? Start checking for doneness around 50 to 55 minutes. The thinner casserole bakes a bit faster.
• Make it ahead: Prep everything the night before, cover tightly, and refrigerate. Pop it in the oven the next morning for an easy make-ahead breakfast casserole.
• Mix up the ingredients: Swap the sausage for beef or plant-based crumbles. You can also add veggies like bell peppers or mushrooms to customize the flavor.

FAQs About Best Breakfast Casserole with Hash Browns

Here are some of the most common questions I get about this hash brown casserole for brunch:

Can I use fresh hash browns instead of frozen?

Yes! Just make sure to squeeze out any excess moisture from fresh shredded potatoes before using them.

How do I store leftovers?

Store leftovers in an airtight container in the fridge for up to 3 days. Reheat portions in the microwave or oven for best results.

Can I freeze the casserole?

Absolutely. Bake the casserole as directed, let it cool completely, and wrap tightly with plastic wrap and foil. Freeze for up to 3 months. To reheat, thaw overnight in the fridge and bake at 350°F until warmed through.

Can I make this vegetarian?

Definitely! Swap the sausage for plant-based crumbles or simply omit it. Load up on veggies like spinach, peppers, or tomatoes for a balanced and flavorful twist.

Conclusion: Your New Go-To Breakfast Casserole

If you’re looking for a savory, crowd-pleasing breakfast or brunch dish, this best breakfast casserole with hash browns is it! Whether it’s a holiday morning or an easy meal-prep idea, this recipe has got you covered. I’d love to hear how it turns out for you—drop your comments below or tag KitchenShortcuts.net on social media to share your creations!

Hungry for more? Check out my other easy breakfast recipes, like air fryer breakfast burritos or slow cooker oatmeal. Let’s keep our mornings delicious—and hassle-free!