This warm and filling Hashbrown Breakfast Casserole is perfect for mornings! It combines crispy hashbrowns, fluffy eggs, and cheesy goodness. It’s like a breakfast hug!
Plus, it’s super easy to make! You just mix everything together and pop it in the oven. Trust me, your family will love waking up to this tasty dish. 🍳🥔
Key Ingredients & Substitutions
Hashbrowns: Frozen hashbrowns are a time-saver here, but you can also use freshly grated potatoes. If using fresh, be sure to squeeze out excess moisture for the best texture.
Breakfast Sausage: I love crumbled breakfast sausage for flavor, but bacon is a tasty alternative! If you want a vegetarian option, try sautéed mushrooms or spinach instead.
Cheddar Cheese: Cheddar is classic, but feel free to mix it up! Monterey Jack or Pepper Jack can add a nice kick. And if you’re dairy-free, you could try a plant-based cheese.
Eggs: Instead of regular eggs, you could try egg substitutes or a tofu scramble for a vegan version.
How Can You Ensure the Eggs Bake Perfectly?
Getting the eggs just right means keeping an eye on them as they finish cooking. Here’s how to do it:
- After the initial baking step, crack the eggs on top gently so they sit comfortably on the casserole.
- Keep an eye on the casserole during the final bake. You want the egg whites to be set while the yolks remain a little runny.
- If you prefer firmer yolks, give it a few extra minutes in the oven, but check regularly.

Hashbrown Breakfast Casserole with Egg
Ingredients You’ll Need:
- 1 (30 oz) bag frozen hashbrowns, thawed
- 1 cup cooked breakfast sausage, crumbled (or cooked bacon if preferred)
- 2 cups shredded cheddar cheese
- 1/2 cup chopped green onions, divided
- 6 large eggs
- 1 cup milk
- 1 teaspoon garlic powder
- 1 teaspoon onion powder
- Salt and pepper to taste
- Optional: additional cooked bacon pieces for topping
How Much Time Will You Need?
This delicious hashbrown breakfast casserole takes about 15 minutes to prepare and 40-45 minutes to bake. So, in just under an hour, you’ll have a warm, filling breakfast ready to serve!
Step-by-Step Instructions:
1. Prepare the Oven and Dish:
Start by preheating your oven to 375°F (190°C). While that’s heating up, grease a 9×13 inch baking dish to prevent sticking.
2. Layer the Hashbrowns:
Spread the thawed hashbrowns evenly across the bottom of your greased baking dish, creating a solid base for your casserole.
3. Add the Sausage:
Sprinkle the cooked breakfast sausage (or your preferred bacon) evenly over the layer of hashbrowns. This adds flavor and protein to your dish!
4. Whisk the Eggs:
In a medium bowl, whisk together the eggs, milk, garlic powder, onion powder, salt, and pepper. Make sure everything is well combined for a fluffy texture.
5. Pour the Egg Mixture:
Carefully pour the egg mixture evenly over the hashbrowns and sausage layer, making sure to cover everything.
6. Top with Cheese:
Sprinkle 1 1/2 cups of shredded cheddar cheese over the top of the casserole. This will melt beautifully during baking!
7. Bake the Casserole:
Place the baking dish in the preheated oven and bake for about 30 minutes, until the edges are golden brown.
8. Add More Eggs:
After 30 minutes, carefully remove the casserole from the oven. Gently crack the remaining eggs on top, spacing them evenly. Then, sprinkle the remaining cheese and chopped green onions over everything.
9. Finish Baking:
Return the casserole to the oven and bake for another 10-15 minutes, or until the eggs are set and the cheese is melted and bubbly.
10. Garnish and Serve:
If you like, you can top the casserole with additional cooked bacon pieces and any leftover green onions before serving. Let it cool for a few minutes, then slice and enjoy your hearty breakfast!
Dig in and enjoy your tasty Hashbrown Breakfast Casserole—perfect for any breakfast or brunch gathering! 🍽️
Can I Use Fresh Hashbrowns Instead of Frozen?
Absolutely! If you prefer fresh hashbrowns, be sure to grate them and squeeze out any excess moisture. This will help keep your casserole from becoming too soggy.
Can I Make This Casserole Ahead of Time?
Yes! You can assemble the casserole a day in advance and store it covered in the fridge. When ready to bake, add an extra 10-15 minutes to the cooking time to ensure it’s heated through.
How Long Can I Store Leftovers?
Leftover casserole can be stored in an airtight container in the fridge for up to 3 days. To reheat, warm it in the oven at 350°F (175°C) until heated through or microwave individual servings until hot.
What Can I Substitute for the Eggs?
If you’re looking for an egg substitute, you can use a combination of 1/4 cup of unsweetened applesauce or mashed bananas for each egg. For a vegan option, try silken tofu blended until smooth, using around 1/4 cup per egg.
