Hash Brown Breakfast Casserole (Easy & Hearty Morning Favorite!)

Introduction

Start your day with this warm and satisfying Hash Brown Breakfast Casserole. With a crispy hash brown base, fluffy eggs, savory sausage, and melty cheese, it’s perfect for brunches, holidays, or make-ahead weekday meals.

Why You’ll Love This Recipe

• One-Pan Wonder: Everything bakes together in one dish—easy prep, easy cleanup, maximum flavor.
• Make-Ahead Friendly: Assemble it the night before and pop it in the oven the next morning for a stress-free breakfast.
• Customizable: Swap in veggies, bacon, different cheeses, or make it vegetarian—endless tasty options!
• Hearty and Filling: Packed with protein, carbs, and cheese, it keeps you full and energized well into the day.
• Perfect for Any Occasion: Great for holidays, potlucks, weekend brunches, or even breakfast-for-dinner nights.

Ingredients for Hash Brown Breakfast Casserole

We’re not cutting corners—just cutting into fresh, tasty essentials.

• Breakfast sausage: Crumbled sausage adds a savory depth. You can use mild or spicy, depending on your taste.
• Onion: Diced onion brings sweetness and flavor. Yellow or white onions work best.
• Bell pepper: Diced bell pepper adds color and crunch. Feel free to use any color you like!
• Frozen hash browns: The star of the dish! They provide that crispy texture without the hassle of grating potatoes.
• Shredded cheddar cheese: Melty and gooey, cheddar cheese is a must. You can swap it for pepper jack for a spicy twist.
• Eggs: Large eggs bind everything together, creating a fluffy texture.
• Milk: A splash of milk makes the egg mixture creamy. You can use whole, skim, or even a non-dairy alternative.
• Garlic powder: This adds a subtle kick. Fresh garlic can be used if you prefer.
• Salt and black pepper: Essential seasonings to enhance the flavors.
• Paprika: A sprinkle of paprika adds warmth and a hint of smokiness.
• Chopped green onions: Optional for garnish, they add a fresh, vibrant touch.

For exact measurements, check the bottom of the article where you can find everything listed for easy printing. Happy cooking!

How to Make Hash Brown Breakfast Casserole

Now that you have all your ingredients ready, let’s dive into the steps to create this mouthwatering Hash Brown Breakfast Casserole.

Step 1: Preheat the Oven

First things first, preheat your oven to 350°F (175°C). This is crucial because a hot oven ensures even cooking. While it heats up, grab a 9×13-inch baking dish and grease it with cooking spray or butter. This will help your casserole come out easily and prevent sticking.

Step 2: Cook the Sausage and Vegetables

In a skillet over medium heat, add the crumbled breakfast sausage. Cook it until it’s browned and cooked through, about 5-7 minutes. Then add the onions and bell peppers toss in. Cook them until they’re softened, about 3-4 minutes. Don’t forget to drain any excess fat; we want a delicious casserole, not a greasy one!

Step 3: Combine Ingredients

In a large bowl, mix the cooked sausage and vegetable mixture with the frozen hash browns and half of the shredded cheddar cheese. Stir it all together until well combined. This step brings all the flavors together for a deliciously hearty base.

Thaw and drain hash browns completely to avoid soggy texture.

Step 4: Prepare the Egg Mixture

In another bowl, whisk together the eggs, milk, garlic powder, salt, black pepper, and paprika. Make sure everything is fully combined. This egg mixture is what binds the casserole, giving it that fluffy texture we all love.

Step 5: Assemble the Casserole

Now it’s time to bring it all together! Pour the egg mixture over the hash brown and sausage mixture in the baking dish. Gently stir to combine everything. Finally, top it off with the remaining cheddar cheese. This will create a deliciously cheesy crust as it bakes!

Step 6: Bake the Casserole

Place your casserole in the preheated oven and bake for 45-50 minutes. Keep an eye on it! You’ll know it’s done when the top is golden brown and the casserole is set.

Step 7: Cool and Serve

Once it’s out of the oven, let the casserole cool for about 5-10 minutes. This step is important; it allows the flavors to settle and makes slicing easier. If you like, garnish with chopped green onions for a fresh touch. Now, slice it up and enjoy your delicious Hash Brown Breakfast Casserole!

Tips for Success

• Use frozen hash browns for convenience; they save time and effort. Thaw hash browns before mixing for best results.
• Don’t skip draining the sausage; it keeps the casserole from being greasy.
• Let the casserole cool before slicing; it holds together better.
• Experiment with different cheeses for unique flavors.
• For a spicier kick, add diced jalapeños or use spicy sausage.
• Use non-dairy milk/cheese for a plant-based version (see Variations)
• If the top browns too quickly, cover loosely with foil during the final 10–15 minutes.

Equipment Needed

• Baking dish: A 9×13-inch dish is ideal, but any similar-sized dish will work.
• Skillet: A non-stick skillet makes cooking the sausage and veggies easier.
• Mixing bowls: Use two bowls for mixing ingredients; one large and one medium.
• Whisk: A whisk helps combine the egg mixture smoothly.
• Spatula: A spatula is handy for mixing and serving the casserole.

Variations

• Vegetarian Option: substitute sausage with sautéed mushrooms or spinach.
• Cheese Lovers: Mix in different cheeses like mozzarella or feta for a unique flavor twist.
• Southwestern Style: Add black beans, corn, and diced tomatoes for a zesty southwestern flair.
• Low-Carb Version: Use cauliflower rice instead of hash browns for a lighter, low-carb alternative.
• Herb Infusion: Incorporate fresh herbs like parsley or cilantro for an aromatic touch.
• Dairy-free version: use non-dairy milk and cheese.

Serving Suggestions

• Fresh Fruit: Serve with a side of mixed berries or sliced melons for a refreshing contrast.
• Toast: Pair with buttered toast or bagels for a classic breakfast feel.
• Coffee: A hot cup of coffee or a mimosa makes for a perfect morning beverage.
• Presentation: Garnish with extra green onions or a sprinkle of paprika for a pop of color.

FAQs about Hash Brown Breakfast Casserole

Can I make Hash Brown Breakfast Casserole ahead of time?

Yes, assemble it the night before and refrigerate. Bake straight from the fridge, adding 5–10 minutes.

Can I freeze leftovers of the casserole?

Absolutely. Slice, wrap tightly, and freeze up to 2 months. Thaw overnight and reheat in oven.

What can I substitute for breakfast sausage?

Try turkey sausage, bacon, or sautéed mushrooms for a meatless option.

Crumbled tofu can work in vegetarian versions but will have a different texture and flavor. Season well to enhance.

How do I know when the casserole is done baking?

The center should be set and not jiggle when gently shaken. A toothpick should come out clean.

Can I add more vegetables to the casserole?

Yes! Just sauté first to reduce moisture.

Final Thoughts

Whether for a cozy brunch or holiday breakfast, this casserole brings comfort and ease to your table. It’s simple to prep, full of flavor, and a guaranteed crowd-pleaser—one you’ll come back to again and again.