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If you’re searching for a hearty, crowd-pleasing breakfast that’s both easy and satisfying, this Hashbrown Breakfast Casserole is the recipe you’ve been waiting for. Made with layers of golden hashbrowns, savory sausage, melted cheese, and fluffy eggs, it’s the ultimate comfort dish to start the day.
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This recipe is perfect for weekend brunches, holiday mornings, or meal prep for the week ahead. You can assemble it the night before and simply pop it into the oven when you wake up — a true lifesaver for busy mornings.
Why You’ll Love This Recipe
This hashbrown casserole has become a household favorite for a reason. Here’s why it stands out:
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- Easy to prepare: Simple ingredients, minimal prep, and one baking dish.
- Perfect for feeding a crowd: Serves up to eight, ideal for gatherings or family brunches.
- Customizable: Mix in your favorite vegetables, meats, or cheeses.
- Make-ahead friendly: Assemble the night before and bake fresh in the morning.
- Comforting and satisfying: Crispy hashbrowns, creamy eggs, and savory sausage make each bite deliciously hearty.
Ingredients Breakdown
Let’s explore what makes this breakfast casserole so flavorful and filling:
- Frozen hashbrowns (30 oz): The base of the casserole, providing that classic crispy potato texture.
- Shredded cheddar cheese (1 cup): Adds richness and a gooey, melty layer that ties the ingredients together.
- Large eggs (6): The key to holding the casserole together while adding protein and flavor.
- Milk (1 cup): Makes the egg mixture creamy and smooth.
- Diced onion (½ cup): Adds aromatic flavor and depth.
- Diced bell pepper (½ cup): Brightens the dish with color and a subtle sweetness.
- Cooked sausage (1 pound): Brings hearty, savory flavor — you can use pork, turkey, or even vegetarian sausage.
- Salt and pepper: Essential for balancing all the flavors.

Tips and Tricks
Get the perfect breakfast casserole every time with these expert tips:
- Thaw the hashbrowns: If your hashbrowns are frozen solid, thaw them first to avoid excess moisture.
- Use a well-greased pan: Prevents sticking and makes serving easier.
- Check doneness: The center should be firm and the edges golden brown.
- Rest before slicing: Let the casserole cool for about 5 minutes before cutting to help it set.
- Double the recipe: Hosting a big group? Simply double the ingredients and bake in two pans.
Variations and Customizations
This breakfast casserole is incredibly versatile. Try these fun variations to make it your own:
- Meat lovers’ version: Add cooked bacon or ham alongside the sausage.
- Vegetarian option: Skip the meat and add mushrooms, spinach, or zucchini.
- Southwestern twist: Mix in green chilies, black beans, and a sprinkle of cumin.
- Cheesy deluxe: Combine cheddar with mozzarella or pepper jack for extra flavor.
- Healthy swap: Use turkey sausage, low-fat cheese, and egg whites for a lighter version.
Pairing Suggestions
Serve your hashbrown breakfast casserole with one or more of these delicious sides for a complete morning meal:
- Fresh fruit salad: A refreshing contrast to the savory casserole.
- Fluffy pancakes or waffles: Perfect for brunch spreads.
- Toast or biscuits: Great for soaking up any leftover eggy goodness.
- Hot coffee or orange juice: The perfect beverages to complete your breakfast table.
Storage Instructions
One of the best parts of this recipe is how well it stores and reheats. Here’s how to keep it fresh:
- Refrigerator: Store leftovers in an airtight container for up to 4 days.
- Freezer: Wrap individual portions tightly in plastic wrap and freeze for up to 2 months.
- Reheat: Warm in the oven at 325°F for 10–15 minutes, or microwave individual slices for 1–2 minutes.
Popular Questions
Can I make this casserole the night before?
Yes! Prepare everything as instructed, cover tightly, and refrigerate overnight. In the morning, bake as directed — it’s a great time-saver for busy mornings.
Can I use fresh potatoes instead of frozen hashbrowns?
You can, but make sure to shred and dry them thoroughly before using to prevent excess moisture.
Can I substitute the sausage?
Absolutely. Try bacon, diced ham, or even cooked chorizo for a flavorful twist.
How do I prevent the casserole from being watery?
Ensure your hashbrowns are thawed and patted dry. Also, avoid adding too much milk.

Hashbrown Breakfast Casserole
Ingredients
Method
- Preheat the oven to 350°F (175°C) and grease a 9×13-inch baking dish.
- In a large bowl, combine hashbrowns, diced onion, bell pepper, and cooked sausage. Stir until well mixed.
- In a separate bowl, whisk together eggs, milk, salt, and pepper until smooth.
- Pour the egg mixture over the hashbrown mixture and stir to combine.
- Transfer the mixture into the prepared baking dish and spread it evenly.
- Sprinkle shredded cheddar cheese evenly over the top.
- Bake for 45–50 minutes, or until the top is golden brown and the center is set.
- Let it cool for a few minutes before slicing and serving warm.
Notes
- This casserole can be assembled ahead of time and baked the next morning.
- Swap or add vegetables like mushrooms, spinach, or tomatoes for variety.
- Perfect for brunch buffets, potlucks, or meal prepping.
- For extra crispiness, broil for 1–2 minutes at the end of baking.
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