This hash brown and egg casserole is a hearty and delicious dish perfect for breakfast or brunch. Combining the savory flavors of breakfast sausage, cheddar cheese, and hash browns, this casserole is sure to be a crowd-pleaser. It's easy to prepare and can be made ahead of time, making it a convenient option for busy mornings.
If you don't typically have frozen hash browns or breakfast sausage in your kitchen, you might need to pick these up at the supermarket. Frozen hash browns are usually found in the freezer section, while breakfast sausage can be located in the refrigerated meat section. Make sure to thaw the hash browns before using them in the recipe.

Ingredients For Hash Brown And Egg Casserole Recipe
Hash browns: Shredded potatoes that are typically frozen and need to be thawed before use.
Breakfast sausage: Ground sausage that is seasoned for breakfast, usually found in the refrigerated meat section.
Cheddar cheese: A sharp, flavorful cheese that melts well and adds richness to the dish.
Eggs: The main binding ingredient that provides structure and protein.
Milk: Adds creaminess and helps to blend the eggs smoothly.
Salt: Enhances the overall flavor of the casserole.
Black pepper: Adds a touch of spice and depth to the dish.
Technique Tip for This Recipe
For an extra layer of flavor, consider browning the hash browns in a skillet with a bit of butter before mixing them with the sausage and cheese. This will give them a crispy texture and a richer taste, enhancing the overall dish.
Suggested Side Dishes
Alternative Ingredients
frozen hash browns - Substitute with grated sweet potatoes: Sweet potatoes provide a different flavor profile and are slightly healthier due to their higher vitamin content.
breakfast sausage - Substitute with ground turkey: Ground turkey is a leaner option and can be seasoned to mimic the flavors of breakfast sausage.
shredded cheddar cheese - Substitute with shredded mozzarella cheese: Mozzarella has a milder flavor and melts well, making it a good alternative.
large eggs - Substitute with egg substitute: Egg substitutes are lower in cholesterol and can be used for those with dietary restrictions.
milk - Substitute with unsweetened almond milk: Almond milk is a dairy-free alternative that works well in casseroles.
salt - Substitute with soy sauce: Soy sauce can add a different depth of flavor and reduce the need for additional salt.
black pepper - Substitute with white pepper: White pepper has a slightly different flavor and can be used for a more subtle heat.
Other Alternative Recipes Similar to This Casserole
How To Store / Freeze This Casserole
- Allow the casserole to cool completely before storing. This helps to prevent condensation, which can make the dish soggy.
- For short-term storage, cover the baking dish tightly with plastic wrap or aluminum foil. Alternatively, transfer the casserole to an airtight container.
- Store the covered casserole in the refrigerator for up to 3-4 days. Reheat individual portions in the microwave or the entire dish in the oven at 350°F (175°C) until warmed through.
- For freezing, cut the cooled casserole into individual portions. Wrap each portion tightly in plastic wrap and then in aluminum foil to prevent freezer burn.
- Place the wrapped portions in a freezer-safe bag or container. Label with the date and contents for easy identification.
- Store in the freezer for up to 2-3 months. When ready to eat, thaw portions overnight in the refrigerator.
- Reheat thawed portions in the microwave or oven. For oven reheating, place portions in a baking dish and cover with aluminum foil. Bake at 350°F (175°C) for about 20-25 minutes or until heated through.
- If reheating from frozen, bake covered portions at 350°F (175°C) for 45-60 minutes, or until the center is hot and the edges are bubbly.
How To Reheat Leftovers
Oven Method:
- Preheat your oven to 350°F (175°C).
- Place the leftover hash brown and egg 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 top get 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 and stirring if necessary.
- 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 olive oil or butter to the skillet.
- Place the casserole in the skillet and cover with a lid.
- Cook for about 5-7 minutes, stirring occasionally, until the casserole is heated through and slightly crispy.
Air Fryer Method:
- Preheat your air fryer to 350°F (175°C).
- Place the casserole in the air fryer basket in a single layer.
- Heat for 5-7 minutes, shaking the basket halfway through to ensure even heating.
- Check for doneness and heat for an additional 2-3 minutes if necessary.
Best Tools for This Recipe
Oven: Used to bake the casserole at a consistent temperature of 350°F (175°C).
Large mixing bowl: Needed to combine the hash browns, sausage, and cheese.
Whisk: Essential for thoroughly mixing the eggs, milk, salt, and pepper.
Greased baking dish: The vessel in which the casserole is baked; greasing it prevents sticking.
Measuring cups: Used to measure out the milk and other ingredients accurately.
Measuring spoons: Necessary for measuring the salt and pepper precisely.
Spatula: Helps in spreading the hash brown mixture evenly in the baking dish.
Knife: Useful for cutting and crumbling the cooked sausage.
Cutting board: Provides a safe surface for cutting and crumbling the sausage.
Oven mitts: Protect your hands when placing the dish in and taking it out of the oven.
How to Save Time on Making This Casserole
Thaw hash browns overnight: Place the frozen hash browns in the refrigerator the night before to ensure they are ready to use.
Cook sausage ahead: Prepare and cook the breakfast sausage a day in advance, then store it in the fridge.
Use pre-shredded cheese: Save time by using pre-shredded cheddar cheese instead of shredding it yourself.
Mix ingredients in advance: Combine the hash browns, sausage, and cheese the night before and store in the fridge.
Pre-whisk eggs: Whisk the eggs, milk, salt, and pepper ahead of time and refrigerate until ready to use.

Hash Brown and Egg Casserole Recipe
Ingredients
Main Ingredients
- 6 cups frozen hash browns, thawed
- 1 lb breakfast sausage, cooked and crumbled
- 2 cups shredded cheddar cheese
- 12 large eggs
- 1 cup milk
- 1 teaspoon salt
- ½ teaspoon black pepper
Instructions
- Preheat oven to 350°F (175°C).
- In a large mixing bowl, combine hash browns, sausage, and cheese. Spread evenly in a greased baking dish.
- In another bowl, whisk together eggs, milk, salt, and pepper. Pour over the hash brown mixture.
- Bake in preheated oven for 45 minutes, or until eggs are set and top is golden brown.
- Let cool for a few minutes before serving.
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