Why You’ll Love This Recipe
I love making this Hash Brown Breakfast Casserole because it’s so easy and versatile. The crispy hash browns provide a perfect base, and the sausage adds that savory kick that pairs perfectly with the cheesy, creamy egg mixture. It’s also a great make-ahead option—prepare it the night before, then just pop it in the oven in the morning for a stress-free breakfast or brunch. With only a few simple ingredients, this dish comes together quickly and is always a hit at any gathering. Plus, it’s a comforting and filling way to start your day!
Ingredients
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1 (30 oz) bag frozen shredded hash browns, thawed
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1 pound breakfast sausage (pork or turkey)
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1 small onion, diced
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8 large eggs
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1 cup whole milk
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1/2 cup sour cream
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2 cups shredded cheddar cheese
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1/2 teaspoon garlic powder
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1/2 teaspoon onion powder
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1/2 teaspoon black pepper
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Salt to taste
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2 tablespoons chopped fresh chives or parsley (optional, for garnish)
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Cooking spray or butter for greasing
(Here’s a tip: Check out the full list of ingredients and measurements in the recipe card below.)
Directions
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Preheat the Oven: Preheat the oven to 375°F (190°C). Grease a 9×13-inch baking dish with cooking spray or butter.
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Cook the Sausage: In a large skillet, cook the breakfast sausage over medium heat until browned and cooked through, breaking it up as it cooks. Once cooked, add the diced onion and sauté for 2–3 minutes until softened. Drain any excess fat and set the mixture aside.
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Prepare the Egg Mixture: In a large bowl, whisk together the eggs, milk, sour cream, garlic powder, onion powder, black pepper, and salt.
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Assemble the Casserole: Spread the thawed hash browns evenly in the bottom of the prepared baking dish. Top with the cooked sausage and onion mixture, followed by the shredded cheddar cheese.
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Add the Egg Mixture: Pour the egg mixture evenly over the top of the casserole. Gently shake the pan to ensure everything is evenly distributed.
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Bake the Casserole: Bake uncovered for 40–45 minutes, or until the center is set and the top is golden brown.
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Cool and Serve: Let the casserole cool for 5–10 minutes before slicing. Garnish with fresh chives or parsley if desired.
Servings and Timing
This recipe makes 8 servings. The prep time is about 15 minutes, with a cooking time of 45 minutes. In total, you’ll have a delicious breakfast casserole ready in about 1 hour!
Variations
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Veggie Version: For a vegetarian version, omit the sausage and add sautéed vegetables such as bell peppers, spinach, or mushrooms to the casserole.
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Spicy Kick: If you like a bit of spice, add diced jalapeños or red pepper flakes to the sausage mixture for extra heat.
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Cheese Options: While cheddar cheese is classic, feel free to swap it out with other cheeses like Monterey Jack, pepper jack, or a blend of cheeses for a different flavor.
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Make Ahead: You can assemble this casserole the night before and refrigerate it overnight. Simply bake it the next morning for a stress-free breakfast.
Storage/Reheating
Leftovers can be stored in an airtight container in the refrigerator for up to 3 days. To reheat, simply microwave individual portions or bake in the oven at 350°F (175°C) for about 10 minutes, or until heated through.
FAQs
Can I use frozen hash browns instead of thawed ones?
Yes, frozen hash browns can be used, but make sure to thaw them first to avoid excess moisture in the casserole. Drain any excess water before using them.
Can I use a different type of sausage?
Absolutely! You can swap the pork sausage for turkey sausage, chicken sausage, or even vegetarian sausage, depending on your dietary preferences.
Can I prepare this casserole the night before?
Yes, this casserole can be assembled the night before. Just cover it with plastic wrap and refrigerate overnight. In the morning, bake it as directed—just make sure to add an extra 5-10 minutes to the baking time since it will be cold from the fridge.
Can I freeze this casserole?
Yes, this casserole can be frozen before or after baking. If freezing before baking, assemble the casserole and cover it tightly with plastic wrap and foil. When ready to bake, cook from frozen at 375°F (190°C) for 60–70 minutes. If freezing after baking, store the casserole in an airtight container for up to 3 months. Reheat in the oven at 350°F (175°C) for 20–25 minutes.
Can I make this dish dairy-free?
Yes, you can use dairy-free milk (such as almond or oat milk) and a dairy-free sour cream substitute. For the cheese, you can use a plant-based cheese to make this casserole dairy-free.
Conclusion
Hash Brown Breakfast Casserole is the ultimate breakfast or brunch dish that combines all your favorite morning ingredients into one flavorful, easy-to-make casserole. With crispy hash browns, savory sausage, cheesy eggs, and a simple assembly, it’s a crowd-pleasing dish that’s perfect for any occasion. Whether you’re feeding a family, hosting a brunch, or just craving a hearty breakfast, this casserole will hit the spot every time. Try it today, and enjoy a delicious, comforting meal that everyone will love!

Hash Brown Breakfast Casserole
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- Author: Mia
- Total Time: 1 hour
- Yield: 8 servings
- Diet: Gluten Free
Description
A hearty, all-in-one breakfast bake with crispy hash browns, eggs, sausage, and cheese—perfect for feeding a hungry crowd.
Ingredients
1 (30 oz) bag frozen shredded hash browns, thawed
1 lb breakfast sausage (pork or turkey)
1 small onion, diced
8 large eggs
1 cup whole milk
1/2 cup sour cream
2 cups shredded cheddar cheese
1/2 tsp garlic powder
1/2 tsp onion powder
1/2 tsp black pepper
Salt, to taste
2 tbsp chopped fresh chives or parsley (optional, for garnish)
Cooking spray or butter for greasing the baking dish
Instructions
Preheat the Oven:
Preheat the oven to 375°F (190°C). Grease a 9×13-inch baking dish with cooking spray or butter.
Cook the Sausage and Onion:
In a large skillet, cook the breakfast sausage over medium heat until browned and fully cooked. Add the diced onion and sauté for 2-3 minutes until softened. Drain any excess fat and set the sausage mixture aside.
Prepare the Egg Mixture:
In a large bowl, whisk together the eggs, milk, sour cream, garlic powder, onion powder, black pepper, and salt.
Assemble the Casserole:
Spread the thawed hash browns evenly in the bottom of the greased baking dish. Top with the cooked sausage and onion mixture. Sprinkle the shredded cheddar cheese over the sausage mixture. Pour the egg mixture evenly over the entire casserole, and gently shake the pan to ensure even distribution.
Bake:
Bake uncovered for 40-45 minutes, or until the center is set and the top is golden brown.
Cool and Serve:
Let the casserole cool for 5-10 minutes before slicing. Garnish with chopped fresh chives or parsley, if desired.
Notes
Make-Ahead Option: You can prepare the casserole the night before, cover it with foil, and refrigerate. In the morning, simply bake as directed.
Swap the Sausage: Feel free to use turkey sausage or vegetarian sausage for a lighter or meatless version.
Add Veggies: For extra flavor and nutrition, add diced bell peppers, spinach, or mushrooms to the sausage mixture.
- Prep Time: 15 minutes
- Cook Time: 45 minutes
- Category: Breakfast, Brunch
- Method: Baking
- Cuisine: American