This hearty sausage potato casserole is a perfect comfort food dish that combines savory sausage, tender potatoes, and melted cheddar cheese. It's an easy-to-make recipe that will satisfy the whole family, making it ideal for a cozy dinner or a potluck gathering.
Most of the ingredients in this recipe are common pantry staples, but if you don't usually keep sausage or cheddar cheese on hand, you'll need to pick them up at the supermarket. Make sure to choose a good quality sausage for the best flavor, and opt for a sharp cheddar cheese to add a rich, tangy taste to the casserole.

Ingredients for Sausage Potato Casserole Recipe
Sausage: Adds a savory and slightly spicy flavor to the casserole.
Potatoes: Provide a hearty base and absorb the flavors of the other ingredients.
Onion: Adds a sweet and aromatic depth to the dish.
Cheddar cheese: Melts into the casserole, adding a creamy and tangy element.
Milk: Helps to create a creamy texture and binds the ingredients together.
Butter: Adds richness and helps to brown the top of the casserole.
Salt: Enhances the overall flavor of the dish.
Black pepper: Adds a hint of spice and balances the flavors.
Technique Tip for This Recipe
When cooking the sausage in the skillet, make sure to let it develop a good sear by not stirring too frequently. This will enhance the flavor and add a nice texture to the casserole. Additionally, consider parboiling the potatoes for about 5-7 minutes before dicing them. This will ensure they cook evenly and become tender during baking.
Suggested Side Dishes
Alternative Ingredients
sliced sausage - Substitute with ground turkey: Ground turkey provides a leaner protein option and can be seasoned to mimic the flavors of sausage.
diced potatoes - Substitute with sweet potatoes: Sweet potatoes add a different flavor profile and are packed with vitamins and fiber.
chopped onion - Substitute with leeks: Leeks offer a milder, slightly sweeter taste compared to onions.
shredded cheddar cheese - Substitute with mozzarella cheese: Mozzarella melts well and provides a milder flavor that can complement the other ingredients.
milk - Substitute with almond milk: Almond milk is a dairy-free alternative that can be used for those who are lactose intolerant or prefer a plant-based option.
melted butter - Substitute with olive oil: Olive oil is a healthier fat option and can add a subtle, rich flavor to the dish.
salt - Substitute with soy sauce: Soy sauce can add a savory umami flavor while also providing the necessary saltiness.
black pepper - Substitute with white pepper: White pepper has a slightly different flavor and can be used to maintain the peppery taste while offering a different visual appearance.
Other Alternative Recipes Similar to This Casserole
How to Store or Freeze This Casserole
Allow the sausage potato casserole to cool completely before storing. This prevents condensation from forming inside the storage container, which can make the dish soggy.
Transfer the cooled casserole into an airtight container. If you don't have a container large enough, you can use a baking dish covered tightly with aluminum foil or plastic wrap.
For short-term storage, place the container in the refrigerator. The casserole will stay fresh for up to 3-4 days.
If you plan to freeze the casserole, wrap it tightly with plastic wrap and then cover it with aluminum foil. This double layer helps prevent freezer burn and keeps the flavors intact.
Label the container with the date so you can keep track of how long it's been stored. The casserole can be frozen for up to 2-3 months.
When you're ready to reheat, thaw the casserole in the refrigerator overnight if it's frozen. This ensures even reheating and maintains the texture of the potatoes and sausage.
Preheat your oven to 350°F (175°C). Remove any plastic wrap and cover the casserole with aluminum foil to prevent the top from burning.
Bake the thawed casserole for about 25-30 minutes, or until it's heated through. If reheating from frozen, it may take up to 60 minutes. Remove the foil during the last 10 minutes to allow the top to crisp up.
For a quicker reheating option, you can microwave individual portions. Place a serving on a microwave-safe plate, cover with a microwave-safe lid or another plate, and heat on medium power for 3-5 minutes, or until hot. Stir halfway through to ensure even heating.
To maintain the best texture and flavor, avoid reheating the casserole multiple times. Only reheat the portion you plan to eat.
How to Reheat Leftovers
Oven Method:
- Preheat your oven to 350°F (175°C).
- Transfer the sausage potato casserole to an oven-safe dish if it’s not already in one.
- Cover the dish with aluminum foil to prevent the cheese from drying out.
- Heat for about 20-25 minutes, or until the potatoes are heated through and the top is bubbly.
Microwave Method:
- Place a portion of the casserole on a microwave-safe plate.
- Cover with a microwave-safe lid or another plate to retain moisture.
- Heat on medium power for 2-3 minutes, checking halfway through to stir and ensure even heating.
- Let it sit for a minute before serving to allow the heat to distribute evenly.
Stovetop Method:
- Heat a non-stick skillet over medium heat.
- Add a small amount of butter or olive oil to the skillet.
- Place the leftover casserole in the skillet, breaking it up slightly to ensure even heating.
- Stir occasionally and cook for about 10 minutes, or until the potatoes and sausage are heated through.
Air Fryer Method:
- Preheat your air fryer to 350°F (175°C).
- Place the casserole in the air fryer basket, making sure not to overcrowd.
- Heat for 8-10 minutes, shaking the basket halfway through to ensure even heating.
- Check to make sure the potatoes are heated through and the top is crispy.
Slow Cooker Method:
- Transfer the leftover casserole to your slow cooker.
- Set the slow cooker to low heat.
- Cover and heat for 1-2 hours, stirring occasionally to ensure even heating.
- Once heated through, serve directly from the slow cooker.
Best Tools for Making This Dish
Oven: Used to bake the casserole at a consistent temperature of 375°F (190°C).
Skillet: Used to cook the sausage over medium heat until browned.
Large bowl: Used to combine the sausage, potatoes, onion, cheese, milk, butter, salt, and pepper.
Baking dish: Used to transfer the mixture for baking.
Knife: Used to dice the potatoes and chop the onion.
Cutting board: Used as a surface for dicing potatoes and chopping onions.
Measuring cups: Used to measure out the milk, cheese, and other ingredients.
Measuring spoons: Used to measure out the salt, pepper, and butter.
Spatula: Used to stir and combine the ingredients in the large bowl.
Oven mitts: Used to safely handle the hot baking dish when removing it from the oven.
How to Save Time on Making This Casserole
Pre-cook the potatoes: Boil the diced potatoes for 5-7 minutes before adding them to the casserole. This ensures they cook faster in the oven.
Use pre-shredded cheese: Save time by using pre-shredded cheddar cheese instead of shredding it yourself.
Chop in advance: Chop the onion and slice the sausage the night before to streamline assembly.
One-pan cooking: Cook the sausage and onion together in the same skillet to save on cleanup time.
Microwave butter: Melt the butter quickly in the microwave instead of on the stove.
Sausage Potato Casserole
Ingredients
Main Ingredients
- 1 lb Sausage sliced
- 4 cups Potatoes diced
- 1 cup Onion chopped
- 1 cup Cheddar Cheese shredded
- 1 cup Milk
- 2 tablespoon Butter melted
- 1 teaspoon Salt
- 0.5 teaspoon Black Pepper
Instructions
- Preheat oven to 375°F (190°C).
- In a skillet, cook sausage over medium heat until browned.
- In a large bowl, combine sausage, potatoes, onion, cheese, milk, butter, salt, and pepper.
- Transfer mixture to a greased baking dish.
- Bake for 45 minutes or until potatoes are tender and top is golden brown.
Nutritional Value
Keywords
Suggested Appetizers and Desserts for This Casserole
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