This Sausage Hash Brown Breakfast Casserole is the perfect way to start your day with a hearty and satisfying meal. Combining the savory flavors of breakfast sausage and hash browns, this dish is topped with melted cheddar cheese for an extra layer of deliciousness. It's easy to prepare and perfect for feeding a crowd.
If you don't typically keep breakfast sausage or frozen hash browns on hand, you might need to make a trip to the supermarket. Look for breakfast sausage in the refrigerated section near the bacon and other breakfast meats. Frozen hash browns are usually found in the freezer aisle, often near other frozen potato products.

Ingredients For Sausage Hash Brown Breakfast Casserole
Breakfast sausage: Adds a savory and slightly spicy flavor to the casserole.
Frozen hash browns: Provides a crispy and hearty base for the dish.
Cheddar cheese: Melts beautifully and adds a rich, cheesy flavor.
Milk: Helps to create a creamy texture in the egg mixture.
Eggs: Binds the ingredients together and adds protein.
Salt: Enhances the overall flavor of the casserole.
Black pepper: Adds a touch of heat and depth to the dish.
Technique Tip for This Breakfast Casserole
When preparing the hash browns for this recipe, make sure they are thoroughly thawed and well-drained to avoid excess moisture in the casserole. This will help achieve a crispier texture. Additionally, consider browning the hash browns slightly in a skillet before mixing them with the sausage and cheese for added flavor and texture.
Suggested Side Dishes
Alternative Ingredients
cooked and crumbled breakfast sausage - Substitute with cooked and crumbled turkey sausage: Turkey sausage is a leaner option and provides a similar flavor profile.
cooked and crumbled breakfast sausage - Substitute with cooked and crumbled vegetarian sausage: Vegetarian sausage offers a plant-based alternative while maintaining the texture and taste.
thawed frozen hash browns - Substitute with freshly grated potatoes: Freshly grated potatoes can provide a fresher taste and similar texture.
thawed frozen hash browns - Substitute with sweet potato hash browns: Sweet potato hash browns add a different flavor and a nutritional boost.
shredded cheddar cheese - Substitute with shredded mozzarella cheese: Mozzarella cheese melts well and offers a milder flavor.
shredded cheddar cheese - Substitute with shredded pepper jack cheese: Pepper jack cheese adds a bit of spice and a different flavor profile.
milk - Substitute with almond milk: Almond milk is a dairy-free alternative that works well in casseroles.
milk - Substitute with oat milk: Oat milk provides a creamy texture and is a good dairy-free option.
beaten eggs - Substitute with egg substitute: Egg substitutes are great for those who are vegan or have egg allergies.
beaten eggs - Substitute with silken tofu: Silken tofu can be blended to mimic the texture of beaten eggs and is a good vegan alternative.
salt - Substitute with soy sauce: Soy sauce can add a salty flavor along with umami notes.
salt - Substitute with sea salt: Sea salt can provide a different mineral content and flavor.
black pepper - Substitute with white pepper: White pepper offers a similar heat but with a slightly different flavor.
black pepper - Substitute with cayenne pepper: Cayenne pepper adds heat and a different spice profile.
Other Alternative Recipes Similar to This Breakfast Casserole
How To Store / Freeze This Breakfast Casserole
- Allow the casserole to cool completely before storing. This helps to maintain its texture and flavor.
- For short-term storage, cover the baking dish tightly with aluminum foil or plastic wrap and place it in the refrigerator. It will stay fresh for up to 3-4 days.
- For longer storage, cut the casserole into individual portions and wrap each piece in plastic wrap. Then, place the wrapped pieces in a resealable freezer bag or airtight container. This method ensures that the casserole can be frozen for up to 2-3 months.
- When ready to reheat, if refrigerated, preheat your oven to 350°F (175°C) and bake the casserole for about 20-25 minutes or until heated through. If frozen, allow it to thaw in the refrigerator overnight before reheating.
- For a quicker reheating option, you can use the microwave. Place a portion of the casserole on a microwave-safe plate, cover it with a microwave-safe lid or another plate, and heat on medium power for 2-3 minutes, checking and stirring halfway through.
- To maintain the casserole's crispy top, consider reheating in the oven or a toaster oven rather than the microwave, as this will help to keep the cheese topping golden and delicious.
- Always ensure the casserole reaches an internal temperature of 165°F (74°C) when reheating to ensure it is safe to eat.
How To Reheat Leftovers
Oven Method:
- Preheat your oven to 350°F (175°C).
- Place the leftover sausage hash brown breakfast casserole in an oven-safe dish.
- Cover the dish with aluminum foil to prevent it from drying out.
- Heat for about 20-25 minutes, or until the casserole is warmed through.
- Remove the foil for the last 5 minutes to let the cheese on top get bubbly and slightly crispy.
Microwave Method:
- Place a portion of the casserole on a microwave-safe plate.
- Cover it with a microwave-safe lid or a damp paper towel to retain moisture.
- Heat on medium power for 2-3 minutes, checking halfway through to ensure even heating.
- If needed, continue heating in 30-second intervals until the casserole is hot.
Stovetop Method:
- Heat a non-stick skillet over medium heat.
- Add a small amount of butter or olive oil to the skillet.
- Place a portion of the casserole in the skillet and cover with a lid.
- Heat for about 5-7 minutes, flipping halfway through to ensure even warming.
- The hash browns will get a nice crispy texture on the outside.
Air Fryer Method:
- Preheat your air fryer to 350°F (175°C).
- Place a portion of the casserole in the air fryer basket.
- Heat for 5-7 minutes, checking halfway through to ensure it doesn't overcook.
- This method will give the hash browns a delightful crispiness.
Best Tools for Making This Breakfast Casserole
Oven: Used to bake the casserole at a consistent temperature of 350°F (175°C).
Large mixing bowl: Needed to combine the cooked sausage, hash browns, and cheese.
Medium mixing bowl: Used to whisk together the milk, eggs, salt, and pepper.
Whisk: Essential for beating the eggs and mixing them with the milk, salt, and pepper.
Greased baking dish: The container where the combined mixture is transferred for baking.
Measuring cups: Used to measure out the milk and shredded cheddar cheese accurately.
Measuring spoons: Necessary for measuring the salt and black pepper.
Spatula: Useful for stirring the egg mixture into the sausage mixture and for transferring the mixture into the baking dish.
Knife: Handy for cutting and crumbling the cooked sausage if it isn't pre-crumbled.
Cutting board: Provides a safe surface for cutting and crumbling the sausage.
Oven mitts: Protect your hands when placing the dish in the oven and taking it out.
Cooling rack: Allows the casserole to cool evenly after baking.
How to Save Time on Making This Breakfast Casserole
Pre-cook the sausage: Cook and crumble the sausage ahead of time and store it in the fridge.
Use pre-shredded cheese: Save time by using pre-shredded cheddar cheese instead of shredding it yourself.
Thaw hash browns overnight: Place the frozen hash browns in the fridge the night before to ensure they are ready to use.
Mix dry ingredients first: Combine the sausage, hash browns, and cheese in a bowl before adding the wet ingredients.
Prepare in advance: Assemble the casserole the night before and store it in the fridge, then bake it in the morning.

Sausage Hash Brown Breakfast Casserole
Ingredients
Main Ingredients
- 1 lb Breakfast sausage cooked and crumbled
- 1 package Frozen hash browns thawed
- 2 cups Shredded cheddar cheese
- 1 cup Milk
- 6 Eggs beaten
- 1 teaspoon Salt
- ½ teaspoon Black pepper
Instructions
- Preheat oven to 350°F (175°C).
- In a large mixing bowl, combine cooked sausage, hash browns, and 1 ½ cups of cheese.
- In another bowl, whisk together milk, eggs, salt, and pepper.
- Pour the egg mixture over the sausage mixture and stir to combine.
- Transfer the mixture to a greased baking dish and top with remaining cheese.
- Bake for 45 minutes or until the top is golden and the casserole is set.
- Let it cool for a few minutes before serving.
Nutritional Value
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