Start your morning with a warm, cheesy, and satisfying Hash Brown Breakfast Casserole! This easy breakfast recipe combines crispy hash browns, savory breakfast sausage, fluffy eggs, and melted cheddar cheese in one delicious dish. It’s perfect for weekend brunch, holiday mornings, or a family breakfast when you want something everyone will enjoy.
The best part? You can prepare the ingredients ahead of time and let the oven do most of the work. Every bite is packed with comforting flavors, making this casserole a breakfast favorite worth sharing.
Why You’ll Love This Hash Brown Breakfast Casserole
- Easy to prepare: Simple ingredients and straightforward steps make this recipe beginner-friendly.
- Perfect for sharing: It serves a family or a small group for breakfast or brunch.
- Cheesy and satisfying: Sausage, eggs, hash browns, and cheddar create a delicious combination.
- Make-ahead friendly: Prepare it the night before and bake it the next morning.
- Great for gatherings: Ideal for holidays, weekend brunches, and special occasions.
Ingredients You’ll Need
Here is everything you need to make this hearty breakfast casserole.
- 1 (30-ounce) package frozen shredded hash browns, thawed
- 1 pound breakfast sausage
- 8 large eggs
- 1 cup whole milk
- 2 cups shredded sharp cheddar cheese
- 1/2 cup diced yellow onion
- 1/2 cup diced red bell pepper
- 2 tablespoons melted butter
- 1 teaspoon garlic powder
- 1 teaspoon onion powder
- 1/2 teaspoon smoked paprika
- 1 teaspoon salt, or to taste
- 1/2 teaspoon black pepper
- 2 tablespoons chopped fresh parsley
How to Make Hash Brown Breakfast Casserole
Step 1: Prepare the Oven and Baking Dish
Preheat your oven to 375°F (190°C). Lightly grease a 9 × 13-inch baking dish with cooking spray or butter. Make sure the frozen hash browns are completely thawed and drain away any excess moisture.
Step 2: Cook the Sausage
Heat a large skillet over medium heat. Add the breakfast sausage and cook for approximately 6–8 minutes, breaking it into small pieces as it browns. Drain excess grease and set the sausage aside.
Step 3: Prepare the Vegetables
In the same skillet, cook the diced onion and red bell pepper for 3–4 minutes until slightly softened. Remove from the heat.
Step 4: Mix the Egg Mixture
In a large mixing bowl, whisk together the eggs, milk, garlic powder, onion powder, smoked paprika, salt, and black pepper until well combined.
Step 5: Assemble the Casserole
Spread the thawed hash browns evenly in the prepared baking dish. Drizzle with melted butter. Add the cooked sausage, onion, and bell pepper. Sprinkle the shredded cheddar cheese evenly over the top.
Step 6: Add the Eggs and Bake
Pour the egg mixture evenly over all the ingredients. Gently press down with a spatula so the hash browns are evenly coated. Bake uncovered for 40–50 minutes, or until the center is set and the top is golden.
For food safety, use a food thermometer to check that the center of the casserole reaches the recommended temperature.
Step 7: Rest and Serve
Remove the casserole from the oven and let it rest for about 5–10 minutes. Sprinkle with fresh parsley, slice into portions, and serve warm.
Helpful Tips for the Best Breakfast Casserole
- Remove excess moisture: Drain thawed hash browns well to prevent a soggy casserole.
- Use freshly shredded cheese: It melts beautifully and gives the casserole a delicious cheesy texture.
- Brown the sausage first: This adds flavor and prevents excess grease from collecting in the dish.
- Check the center: The egg mixture should be fully set. For food safety, the center should reach 165°F (74°C).
- Customize the vegetables: Mushrooms, spinach, or green onions are delicious additions.
Make-Ahead Instructions
You can assemble this casserole the night before.
Prepare the sausage and vegetables, then layer the ingredients in your greased baking dish. Whisk the egg mixture separately and refrigerate it in a covered container.
The next morning, pour the egg mixture over the casserole and bake. If the dish is very cold from the refrigerator, allow extra baking time and check that the center is fully cooked.
How to Store Leftovers
Refrigerator: Allow leftovers to cool slightly, then transfer them to an airtight container. Refrigerate within two hours and enjoy within 3–4 days.
Freezer: Cut the completely cooled casserole into individual portions. Wrap them well and freeze for up to 2 months for best quality.
Reheating: Reheat individual portions in the microwave until steaming hot, or warm larger portions in a 325°F (165°C) oven until heated through.
What to Serve with Hash Brown Breakfast Casserole
This casserole is filling on its own, but you can serve it with:
- Fresh fruit salad
- Toast or warm biscuits
- Sliced avocado
- Fresh orange juice
- A simple green salad
If you enjoy easy make-ahead breakfasts, try our Apple Cinnamon French Toast Casserole for another delicious morning treat.
Frequently Asked Questions
Can I use fresh potatoes instead of frozen hash browns?
Yes! Grate fresh potatoes, rinse away excess starch, and squeeze out as much moisture as possible before using them.
Can I make this breakfast casserole without sausage?
Absolutely. You can leave out the sausage or replace it with cooked bacon, diced ham, or sautéed vegetables.
Can I prepare this casserole the night before?
Yes. Assemble the hash browns, sausage, vegetables, and cheese ahead of time. Keep the egg mixture separate and refrigerated until you’re ready to bake.
How do I know when the casserole is done?
The center should be set rather than liquid, and a food thermometer inserted into the center should read 165°F (74°C).
Can I freeze breakfast casserole?
Yes. Freeze cooked, cooled portions in airtight freezer-safe containers. Thaw safely in the refrigerator before reheating.
Final Thoughts
This Hash Brown Breakfast Casserole with Sausage and Cheddar is everything a comforting breakfast should be: warm, cheesy, flavorful, and easy to share. Whether you’re preparing a relaxed weekend brunch or feeding the family on a busy morning, this recipe makes breakfast feel special.
Give it a try, and don’t forget to share your results with us at My Savor Recipes!
