If you’re craving a hearty, cheesy comfort food that feeds the whole family with zero stress, this Kielbasa Sausage Cheesy Potato Casserole is about to become your new favorite American weeknight dinner. As a busy home cook, I’ve made this cheesy potato bake 5 times in my own kitchen to get the potatoes perfectly creamy, not mushy, and the kielbasa perfectly smoky and browned.
This Kielbasa Sausage Cheesy Potato Casserole is the ultimate one-pan family dinner with savory smoked kielbasa, creamy hash brown potatoes, and melty cheddar cheese baked until bubbly and golden. It’s ready in under an hour with just 10 minutes of prep – perfect for busy families. If you love cheesy bakes, you’ll also love my crockpot cheesesteak potato casserole for another hearty dinner.

Why American Families Love This Kielbasa Sausage Cheesy Potato Casserole
There are so many reasons this cheesy kielbasa bake is a top family favorite across America. It’s pure comfort food that everyone loves.
- 10-Minute Prep: This casserole is just mix, dump, and bake – perfect for busy weeknights with no fuss.
- Feeds a Crowd: Makes 8 big servings, great for potlucks, Sunday dinner, and game day gatherings.
- Kid-Approved: Cheesy potatoes and smoky sausage – even picky eaters clean their plates every time.
- Budget-Friendly: Made with frozen hash browns and simple ingredients from Walmart or Kroger.
- Make-Ahead: Assemble in the morning and bake at night – perfect for meal prep.
Ingredients for Kielbasa Sausage Cheesy Potato Casserole
To make the best Kielbasa Sausage Cheesy Potato Casserole, you need these simple ingredients:
- 1 lb smoked kielbasa sausage, sliced into 1/2-inch pieces
- 32 oz bag frozen diced hash brown potatoes, thawed and patted dry
- 10.5 oz can cream of chicken soup (or cream of mushroom)
- 1 cup sour cream, full fat
- 2 cups shredded sharp cheddar cheese, divided
- 1/2 cup chopped green onions
- 1/2 tsp each: garlic powder, black pepper, paprika
- 2 tbsp butter, melted
- 1 cup crushed cornflakes or Ritz crackers for topping (optional)
How to Make Kielbasa Sausage Cheesy Potato Casserole
Step 1: Prep the Creamy Base
Preheat oven to 350°F and grease a 9×13-inch baking dish. In a large bowl, combine cream soup, sour cream, 1 1/2 cups cheddar, green onions, and spices. Mix until smooth and creamy. This base makes your Kielbasa Sausage Cheesy Potato Casserole extra rich. Try my creamy crockpot chicken spaghetti next.
Step 2: Load Potatoes and Sausage
Stir thawed hash browns into the sauce until evenly coated. Fold in sliced kielbasa until well combined. Spread mixture into prepared baking dish in an even layer. This step ensures every bite of the Kielbasa Sausage Cheesy Potato Casserole is loaded with flavor.

Step 3: Bake Until Bubbly and Golden
Sprinkle remaining 1/2 cup cheese on top. For crunch, mix melted butter with cornflakes and scatter over. Bake this Kielbasa Sausage Cheesy Potato Casserole uncovered for 40-45 minutes until bubbly, golden brown, and cheese is melted. Let rest 5 minutes before serving so it sets perfectly.
Expert Tips for the Best Cheesy Potato Casserole
Want perfect Kielbasa Sausage Cheesy Potato Casserole every time? Thaw potatoes completely and pat dry to avoid watery casserole. Shred your own cheese for creamiest melt. Don’t skip the 5-minute rest – it helps slices hold together. Add frozen peas or bell peppers for color and nutrition.
What to Serve and Storage
This Kielbasa Sausage Cheesy Potato Casserole is a complete meal but pairs beautifully with green salad, steamed broccoli, or garlic bread. Store leftovers in fridge 3-4 days or freeze up to 3 months. Reheat in oven at 350°F until hot. If you love one-pan dinners, try my Cajun Sausage and Rice Skillet – ready in 30 minutes.
Frequently Asked Questions
Can I use fresh potatoes?
Yes! Dice 2 lbs Russets small and parboil 8 minutes. Drain well before using in your Kielbasa Sausage Cheesy Potato Casserole so they cook tender.
Can I freeze this casserole?
Yes! Assemble without topping, wrap tightly, and freeze your Kielbasa Sausage Cheesy Potato Casserole up to 3 months. Thaw overnight then bake 50 min.

Kielbasa Sausage Cheesy Potato Casserole
Ingredients
Main Ingredients
- 1 lb smoked kielbasa sausage, sliced into 1/2-inch pieces Use smoked kielbasa for a rich flavor.
- 32 oz bag frozen diced hash brown potatoes, thawed Ensure they are completely thawed and patted dry.
- 10.5 oz can cream of chicken soup (or cream of mushroom) Choose according to your preference.
- 1 cup sour cream Adds creaminess to the dish.
- 2 cups shredded cheddar cheese, divided Use sharp cheddar for the best flavor.
- ½ cup chopped green onions For added flavor and color.
- ½ tsp garlic powder Enhances the overall taste.
- ½ tsp black pepper To taste.
- ½ tsp paprika Adds color and a hint of flavor.
- 2 tbsp butter, melted Used for topping.
- 1 cup crushed cornflakes or Ritz crackers for topping (optional) For a crunchy texture on top.
Instructions
Preparation
- Preheat oven to 350°F and grease a 9×13-inch baking dish.
- In a large bowl, combine cream of chicken soup, sour cream, 1 1/2 cups of cheddar cheese, green onions, garlic powder, black pepper, and paprika. Mix until smooth.
Assembly
- Stir in thawed hash brown potatoes until evenly coated.
- Fold in sliced kielbasa sausage until well combined.
- Spread the mixture into the prepared baking dish.
Baking
- Sprinkle remaining 1/2 cup of cheddar cheese on top.
- For a crunchy topping, mix melted butter with cornflakes and scatter over.
- Bake uncovered for 40-45 minutes until bubbly and golden brown.
- Let rest for 5 minutes before serving.







