Name: Kielbasa and Potato Bake
Prep time: 10 min
Cook time: 40 min
Total time: 50 min
Ingredients: 3 cups russet potatoes, (peeled and cubed); 1 tablespoon olive oil; 1 pound smoked kielbasa sausage, (cut into bite-size pieces); ¼ cup all-purpose flour; ¼ cup unsalted butter; 2 teaspoons garlic, (minced); 1 ½ cup milk, (2%); ½ cup heavy cream, (33%); ½ teaspoon ground cumin; ½ teaspoon garlic powder; 1 teaspoon salt; ½ teaspoon cracked black pepper; 1 can cheddar cheese soup, (284 ml); 2 cup sharp cheddar cheese, (shredded)

Overhead view of kielbasa and potato casserole with a wooden spoon lifting a generous portion from the baking dish.

Made with tasty sausage and crispy potatoes in a creamy cheese sauce, Kielbasa and potato bake is hearty, home-cooked comfort food.

Jump to Recipe

Prep Time10

Cook Time40

Total Time50

Servings

Comfort food doesn’t get more satisfying—or easier—than this cheesy, smoky, and downright cozy kielbasa and potato casserole.

Overhead shot of cheesy kielbasa and potato casserole with a wooden spoon lifting a serving from the dish.

I’ve been making versions of this for years, tweaking the seasoning, the cheese blend, even the way I slice the sausage until it was exactly how I wanted it: creamy, golden, and loaded with flavor in every bite. If you’ve got 10 minutes for prep and a hearty appetite, you’re going to want this one in your rotation.

Ingredients for Kielbasa and Potato Bake

You Will Need:

3 cups of russet potatoes, 3 medium sized potatoes, peeled and cubed
1 tablespoon of olive oil
1 pound smoked Kielbasa sausage, cut into bite-sized pieces
¼ cup of all-purpose flour
¼ cup of unsalted butter
2 teaspoons of minced garlic
1 ½ cups of 2% milk
½ cup of heavy cream, 33%
½ teaspoon of ground cumin
½ teaspoon of garlic powder
1 teaspoon of salt
½ teaspoon of cracked black pepper
1 can of cheddar cheese soup, 284 ml
2 cups of shredded sharp cheddar cheese

Ingredient Substitutions

Kielbasa: Kielbasa sausage is a U-shaped, Polish smoked sausage. If you can’t get hold of it, you could use another type of sausage such as chorizo, bratwurst, hot dog sausages or vegetarian sausages.

Russet Potatoes: These are also known as Idaho potatoes. If you happen to have a different variety of potato, those will work just fine for this recipe.

How To Make This Kielbasa and Potato Bake Recipe

Boil potatoes until just tender. Place peeled, cubed potatoes in a pot of salted water. Bring to a boil and cook until fork-tender but not mushy. Drain well, then transfer to a greased 9×13-inch baking dish.

Over medium heat, lightly brown the kielbasa slices in a little olive oil, about 5 minutes.

Sliced kielbasa sausage browning in a stainless steel skillet with olive oil, stirred with a wooden spoon until lightly caramelized.

This step does more than just warm the sausage—it deepens the smoky flavor and adds those irresistible caramelized edges that will infuse the entire casserole.

In the same skillet, melt butter with the leftover oil and sprinkle in the flour. Cook until you can’t see any raw white flour—about 2 minutes.

Butter and flour in a skillet making a roux, then whisked into a smooth golden paste with a wooden spoon.

This quick roux is the base of your creamy sauce, so give it a little love here and you’ll be rewarded later with a velvety texture that clings to every bite.

Add garlic, milk, cream, ground cumin, garlic powder, salt, pepper, and cheddar cheese soup. Stir until smooth and let it simmer until thickened, about 3–4 minutes.

Milk, heavy cream, cheddar cheese soup, garlic, and spices being stirred into the roux to create a thick, creamy cheese sauce.

The rich sauce that forms here is the heart of the dish—bold, cheesy, and perfectly seasoned to balance the potatoes and smoky kielbasa.

Pour the sauce over the cooked potatoes and browned sausage in the baking dish. Toss until everything is well coated.

Golden cheese sauce poured over boiled potato cubes and browned kielbasa in a glass baking dish, then stirred to coat evenly.

At this point, it’s impossible not to want a taste—but trust the process. The bake time will marry all those flavors together into a golden, cheesy comfort masterpiece.

Serving Suggestions

This casserole is rich, cheesy comfort all on its own, but it really shines when you pair it with something fresh and light.

Serve generous scoops alongside a crisp green salad or green bean casserole to balance the richness.
Warm dinner rolls are perfect for soaking up every last drop of that creamy cheese sauce.
And if you’re serving a crowd, keep it warm in a low oven so the cheese stays melty and irresistible.

Storage & Reheating

Fridge – Store in an airtight container for up to four days.
Freezer – Wrap well and freeze for up to two months; thaw overnight before reheating.
Reheat – Warm in the oven at 350°F until heated through, or in the microwave for quick servings.

Wooden spoon holding a scoop of creamy kielbasa and potato bake above the casserole dish.

Oven-baked kielbasa and potato casserole is the perfect comfort food to enjoy on a cold winter evening. But this sausage and potato casserole isn’t just for dinner. You could also serve a small portion with eggs for a hearty breakfast.

More Casserole Recipes

For more casserole ideas, take a look at our popular hamburger casserole and this cheesy cowboy casserole.

Kielbasa and Potato Bake

5 from 1 vote

Made with tasty sausage and crispy potatoes in a creamy cheese sauce, Kielbasa and potato bake is hearty, home-cooked comfort food.

Prep Time 10

Cook Time 40

Total Time 50

Servings

Print Recipe Pin Recipe Review Recipe

Ingredients

3 cups russet potatoes, peeled and cubed
1 tablespoon olive oil
1 pound smoked kielbasa sausage, cut into bite-size pieces
¼ cup all-purpose flour
¼ cup unsalted butter
2 teaspoons garlic, minced
1 ½ cup milk, 2%
½ cup heavy cream, 33%
½ teaspoon ground cumin
½ teaspoon garlic powder
1 teaspoon salt
½ teaspoon cracked black pepper
1 can cheddar cheese soup, 284 ml
2 cup sharp cheddar cheese, shredded

Instructions

Preheat oven to 350 degrees F.
Spray a 9 x 13 inch baking dish with non-stick cooking spray. Set aside.
In a medium sized 2 Quart pot, boil potatoes in water until tender, about 7 minutes. Do not overcook these. They should be tender but not mushy. Drain potatoes then place them in the prepared baking dish.
In a frying pan over medium heat, lightly brown sausage pieces with olive oil, about 5 minutes. Add browned sausages to the baking dish.
In the same frying pan, now with just the leftover oil, add flour and butter. Cook over medium-low heat until you no longer see the white of the flour.
Add in minced garlic, milk, heavy cream, ground cumin, garlic powder, salt, pepper and cheddar cheese soup. Stir together until simmering and sauce has thickened, about 3 to 4 minutes. Stir in shredded cheese. Remove from heat.
Pour sauce into pan with potatoes and sausage. Toss well to mix until all potatoes and sausages are coated in sauce.
Place in the oven and bake for 30 minutes.

Nutrition

Have You Tried This Recipe?Follow me on Pinterest @spaceshipslb

Proudly Prepared by the Spaceships Kitchen

This recipe was developed, tested, cooked and photographed by the Spaceships Kitchen. From our dinner table to yours, we hope you think it's out of this world!

Stephanie Keeping Publisher
Layne Kangas Marketing
Lexus Monroe Editorial Assistant
Amy Tandiko Graphic Designer
Ina Chong

Kielbasa and Potato Casserole