If you’re looking for a make-ahead breakfast recipe that’s equal parts comforting, filling, and delicious, this Hearty Breakfast Casserole is your go-to dish. Perfect for weekend brunches, holiday mornings, or feeding a hungry crowd, this casserole is packed with eggs, savory sausage, melted cheese, and tender golden potatoes—all baked to perfection in one dish.
The beauty of this recipe lies in its versatility and ease. It can be prepped the night before and simply popped in the oven in the morning, making it a favorite for busy families and entertainers alike.
Table of Contents
Ingredients and Their Purpose
- 1 pound breakfast sausage – Adds a savory, flavorful base with a satisfying meaty bite.
- 6 large eggs – Provide structure and richness, binding the ingredients into a cohesive casserole.
- 2 cups whole milk – Ensures a creamy, custard-like texture and balances the saltiness of the sausage and cheese.
- 3 cups frozen shredded hash browns – Offer heartiness and soak up the egg mixture beautifully, giving a classic breakfast feel.
- 1 ½ cups shredded cheddar cheese – Melts into the casserole for gooey, cheesy goodness in every bite.
- 1 small onion, diced – Enhances flavor with a subtle sharpness that complements the richness of the eggs and sausage.
- 1 bell pepper, diced – Adds color and a slight sweetness that balances the savory components.
- 1 teaspoon salt – Enhances and brings out all the flavors.
- ½ teaspoon black pepper – Adds mild heat and depth.
- ½ teaspoon garlic powder – Infuses a subtle, savory undertone that ties everything together.
- Optional: chopped green onions or fresh parsley – For garnish and a pop of freshness.
Step-by-Step Instructions
1. Cook the Sausage and Vegetables
In a large skillet over medium heat, brown the breakfast sausage, breaking it up into crumbles. Once it starts to brown, add in the diced onion and bell pepper, and cook until the vegetables are soft and the sausage is fully cooked. Drain excess fat if needed.
2. Assemble the Base
In a greased 9×13-inch baking dish, spread the frozen hash browns evenly across the bottom. Layer the cooked sausage and vegetables on top, followed by 1 cup of the shredded cheddar cheese.
3. Mix the Egg Custard
In a large mixing bowl, whisk together the eggs, milk, salt, pepper, and garlic powder until fully combined. This mixture will soak into the hash browns and set into a creamy, savory custard when baked.
4. Pour and Top
Carefully pour the egg mixture over the layers in the baking dish, ensuring even distribution. Top with the remaining ½ cup of cheddar cheese.
5. Bake
Preheat your oven to 375°F (190°C). Bake the casserole uncovered for 40-45 minutes, or until the eggs are set in the center and the top is golden brown.
6. Cool and Garnish
Let the casserole rest for 10 minutes before slicing. Garnish with chopped green onions or parsley for a fresh finishing touch.
Why This Breakfast Casserole is Loved
This recipe is a one-dish wonder: it’s satisfying, easy to make ahead, customizable, and universally appealing. It’s ideal for meal prep, potlucks, or simply feeding a family of hungry eaters without dirtying multiple pans.
Pro Tips for Perfection:
- Use pre-cooked or thawed hash browns to ensure even baking.
- For added flavor, substitute part of the cheddar with pepper jack or smoked gouda.
- Want to make it vegetarian? Swap sausage for sautéed mushrooms and spinach.
- Make it the night before and store covered in the fridge; bake fresh in the morning for best results.
Serving Suggestions
Serve this casserole with:
- A side of fresh fruit salad for a light contrast.
- Buttery toast or English muffins for added carbs.
- Hot coffee or fresh orange juice for the full breakfast experience.
It also pairs beautifully with a light green salad if you’re serving it for brunch or lunch.
Final Thoughts: Easy, Satisfying, and Full of Flavor
This Hearty Breakfast Casserole is everything you want in a morning meal—rich, filling, and incredibly delicious. With just a handful of ingredients and a simple preparation process, it delivers big on flavor while keeping your morning stress-free. Whether you’re hosting guests or just feeding your own household, this dish is a guaranteed hit.
Related Article: 5 Tasty Clean Eating Recipes Your Family Will Love!
Breakfast Casserole Recipe – Frequently Asked Questions (FAQ)
1. Can I make this breakfast casserole ahead of time?
Yes! This casserole is perfect for preparing the night before. Assemble all the layers, cover tightly with plastic wrap or foil, and store it in the refrigerator overnight. In the morning, remove it from the fridge while the oven preheats and bake as instructed.
2. Can I freeze breakfast casserole?
Absolutely. To freeze:
Bake the casserole first and let it cool completely.
Wrap tightly with plastic wrap and foil.
Freeze for up to 2 months.
When ready to eat, thaw overnight in the refrigerator and reheat in the oven at 350°F (175°C) until warmed through.
3. How do I know when the casserole is fully cooked?
The casserole is done when:
The center is firm and no longer jiggles.
A knife inserted in the middle comes out clean.
The top is golden brown.
Cooking time is typically 40–45 minutes at 375°F, depending on your oven and the depth of your dish.
4. Can I use fresh potatoes instead of frozen hash browns?
Yes. Simply grate fresh potatoes and squeeze out excess moisture using a clean kitchen towel. Keep in mind that fresh potatoes may slightly increase the baking time and alter texture.
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