Cheesy kielbasa hashbrown casserole cooks in a slow cooker with diced smoked sausage, frozen hashbrowns, onion, and a creamy cheese sauce. It cooks for six hours on low and needs only about fifteen minutes of prep.
The potatoes soften in the sauce while the sausage adds savory flavor, so the dish works for brunch, weeknight meals, or a gathering with little oven space.
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Why This Cheesy Kielbasa Hashbrown Casserole Recipe Works
Frozen hashbrowns save peeling and shredding, and they cook evenly in the slow cooker without turning to paste.
A sauce of sour cream, milk, and soup coats the potatoes, which keeps them moist during the long cook.
Cheese goes in twice, mixed through the potatoes and sprinkled on top, so the dish is cheesy from the first bite to the last.
Ingredients for Cheesy Kielbasa Hashbrown Casserole
- The base uses one thirty two ounce bag of frozen hashbrowns, one pound of diced kielbasa, one small diced onion, and two and a half cups of shredded cheddar.
- The sauce uses half a cup each of sour cream and milk, one can of cream of mushroom or chicken soup, onion powder, minced garlic, pepper, and a little salt.
Kielbasa. It adds smoky, savory flavor and makes the dish filling.
Frozen hashbrowns. They provide the potato base and soak up the sauce.
Cheddar cheese. It melts into the sauce and tops the dish.
Sour cream and soup. They create a creamy, tangy coating.
Onion and garlic. They add aroma and depth.
How to Make Cheesy Kielbasa Hashbrown Casserole
1. Grease the cooker. Coat the inside of the slow cooker with cooking spray or butter.
2. Add the base. Add the kielbasa, hashbrowns, onion, and two cups of the cheddar and mix gently.
3. Make the sauce. Whisk the sour cream, milk, soup, salt, pepper, onion powder, and garlic in a bowl.
4. Combine. Pour the sauce over the potatoes and stir lightly to coat.
5. Top. Sprinkle the remaining cheddar on top.
6. Cook. Cover and cook on low for six hours or on high for three to four hours.
Do not thaw the hashbrowns. Frozen potatoes release moisture slowly as they cook, which keeps them tender, while thawed ones shed water and make the casserole watery. Break up any large clumps of frozen shreds before adding the sauce so the coating spreads evenly.
Stir the casserole once or twice during cooking if you can, but avoid lifting the lid too often. Each time the lid comes off, the cooker loses heat and the cooking time stretches, so keep it closed except for quick stirs.
How to Serve Cheesy Kielbasa Hashbrown Casserole
Serve scoops hot with fresh chives, a fried egg, or a simple green salad. For more kielbasa and potato casseroles, try kielbasa sausage cheesy potato casserole, cheesy hashbrown casserole, hash brown breakfast casserole, or cheesy hash brown ham bake.
How to Store and Reheat Cheesy Kielbasa Hashbrown Casserole
Cool the casserole, then refrigerate leftovers in an airtight container for up to three days. Reheat portions in the microwave or in a 350 F oven until hot throughout. Potatoes can turn grainy in the freezer, so freezing is not recommended.
Tips and Variations for Cheesy Kielbasa Hashbrown Casserole
Flag the allergens. This casserole contains milk and may contain wheat, soy, or other allergens in the sausage and soup.
Do not taste undercooked potatoes. Frozen hashbrowns must cook fully, so taste the casserole only once the potatoes are tender and hot.
Check the temperature. Leftovers should be reheated to 165 F.
Grease well. Cheese sticks to the sides.
Choose a large cooker. A six quart model prevents overflow.
Add vegetables. Peppers or broccoli fold in easily.
Season at the end. Taste before adding salt, since sausage is salty.
Check trusted guidance. Read the Clemson slow cooker food safety fact sheet for slow cooker times and temperatures.
Dice the kielbasa into small pieces so it spreads through every serving. Browning the pieces in a skillet for a few minutes first adds a deeper flavor, though the dish also works fine with plain diced sausage straight from the package.
Add fresh herbs, green onions, or crumbled bacon on top before serving. A dollop of sour cream or a spoonful of salsa also pairs well, and a side of fruit or green salad balances the richness.
Frequently Asked Questions About Cheesy Kielbasa Hashbrown Casserole
How long does cheesy kielbasa hashbrown casserole take in a slow cooker?
Cook it on low for six hours or on high for three to four hours.
Can you make cheesy kielbasa hashbrown casserole in the oven?
Yes. Bake it covered at 350 degrees F for about one hour, then uncover it for ten minutes.
Can you freeze cheesy kielbasa hashbrown casserole?
Freezing is not recommended because the potatoes turn grainy.
Can I use fresh potatoes?
Shredded fresh potatoes release more water, so squeeze them dry first.
Can I use another sausage?
Yes. Smoked sausage or ham works in the same amount.
Cheesy Kielbasa Hashbrown Casserole
Equipment
- 6-quart slow cooker
- Mixing bowl
- Whisk
Ingredients
Main Ingredients
- 1 bag frozen hashbrowns 32 ounces
- 1 lb kielbasa sausage diced
- 1 small onion diced
- 2 cup shredded cheddar cheese mixed in
- ½ cup shredded cheddar cheese for the top
- ½ cup sour cream
- ½ cup milk
- 1 can cream of mushroom soup about 10 ounces, or cream of chicken
- ¼ tsp salt
- ½ tsp black pepper
- ½ tsp onion powder
- ½ tsp minced garlic
Instructions
Cooking
- Grease. Coat the slow cooker with cooking spray or butter.
- Layer. Add the kielbasa, hashbrowns, onion, and 2 cups of cheddar and mix gently.
- Sauce. Whisk the sour cream, milk, soup, and seasonings and pour over the potatoes.
- Top. Sprinkle the remaining cheddar on top.
- Cook. Cover and cook on low for 6 hours or on high for 3 to 4 hours.
