Kielbasa Sausage Cheesy Potato Bake

Featured in Hearty Main Courses.

This comforting dish layers browned kielbasa sausage, sliced potatoes, and a creamy cheddar cheese sauce before baking everything to golden, bubbling perfection. Finished with extra cheese and an optional buttery crumb topping, it delivers rich flavors and an irresistible texture. Perfect for sharing with family or friends on a cozy night in, this one-pan meal can be prepped ahead and customized with veggies or alternative sausages. Satisfying, hearty, and easy to prepare, it makes a delicious dinner or potluck option that everyone will love.

Casey
Updated on Mon, 21 Jul 2025 22:08:34 GMT
A dish of food with sausage and cheese. Pin it
A dish of food with sausage and cheese. | cookingwithcasey.com

This comforting kielbasa sausage cheesy potato casserole is the answer to your coziest dinner cravings. Packed with smoky sausage, rich cheese, tender potatoes, and a golden bubbly top, it is a dish I return to whenever I need a little kitchen cheer. Whether you are headed to a potluck or just want a hearty family meal, this casserole delivers every time.

I still remember the first time I brought this to a family game night—the pan was scraped clean and everyone demanded the recipe for their own gatherings.

Ingredients

  • Smoked kielbasa sausage: Sliced into rounds brings smoky flavor and hearty bites. Choose a sausage with a deep color and strong aroma
  • Yukon Gold or Russet potatoes: Diced or sliced provide comforting texture and soak up the cheese sauce. Look for firm potatoes without sprouts
  • Shredded sharp cheddar cheese: Gives bold, tangy flavor and creamy melt. Freshly grated cheese melts best and avoids clumps
  • Finely chopped onion and minced garlic: Layer in savory depth. Yellow onions and fresh garlic will give the most aromatic base
  • Butter and all purpose flour: Combine to build a classic roux creating a rich, velvety sauce
  • Whole milk or half-and-half: For extra richness forms the creamy backbone of the sauce. Choose full fat dairy for the smoothest texture
  • Dijon mustard: For subtle depth pick a quality brand for best results
  • Salt, black pepper, smoked paprika, and garlic powder: Ensure balanced, robust flavors. Smoked paprika adds a hint of campfire nostalgia
  • Crushed Ritz crackers or breadcrumbs with melted butter: Make for a golden and crunchy topping. Feel free to use panko for extra crispness
  • Chopped parsley or green onion: For a fresh garnish

Step-by-Step Instructions

Prep the Oven and Baking Dish:
Set your oven to three hundred seventy five degrees Fahrenheit. Grease a nine by thirteen inch baking dish ensuring the corners are coated so nothing sticks later
Cook the Kielbasa:
Place sliced kielbasa in a skillet over medium heat. Let the sausage brown for five to seven minutes stirring to make sure every piece gets crisp and caramelized. Transfer to a plate and set aside
Make the Cheese Sauce:
Melt the butter over medium heat in a saucepan. Scatter in the chopped onion and stir gently letting it turn translucent not brown for two to three minutes. Add minced garlic and keep stirring for another thirty seconds until fragrant. Sprinkle in the flour and stir nonstop until fully absorbed forming a thick paste. Slowly pour in the milk whisking all the while to avoid lumps. Add salt pepper smoked paprika garlic powder and Dijon mustard if using. Keep stirring for five to seven minutes until the sauce thickens and coats the spoon. Fold in one and a half cups of shredded cheddar whisking till smooth and creamy
Assemble the Casserole:
Spread diced or sliced potatoes evenly over the bottom of the greased dish. Scatter browned kielbasa across the potatoes so every bite has sausage. Pour the warm cheese sauce over everything and use a spatula to mix gently ensuring every layer is coated
Add Cheese and Topping:
Sprinkle the remaining half cup of cheddar cheese on top making sure there are no bare spots. If using a crunchy topping mix the cracker or breadcrumb crumbs with melted butter toss to coat evenly and sprinkle across the surface for crunch
Bake:
Cover the casserole tightly with foil. Bake for forty minutes to allow the potatoes to get tender and flavors to meld. Remove the foil and bake for another twenty to twenty five minutes until the cheese is golden and bubbling and the potatoes are fork tender. Let the casserole rest five to ten minutes before slicing so it sets neatly
A dish of food with a hot dog and potatoes. Pin it
A dish of food with a hot dog and potatoes. | cookingwithcasey.com

I love using a smoked kielbasa because it turns every bite into something special the scent alone always reminds me of big family gatherings where everyone headed straight for the kitchen as soon as this started baking

Storage Tips

Once cooled store leftover casserole in an airtight container in the fridge for up to four days. For longer storage wrap tightly and freeze for up to two months. To serve from frozen thaw overnight before reheating. Reheat gently in the oven at three hundred fifty degrees so the cheese stays silky rather than separating

Ingredient Substitutions

For a twist you can use spicy andouille sausage turkey sausage or any plant based links. Other great cheeses include pepper jack for a little heat or Gruyère for a French bistro spin. Feel free to add in vegetables like broccoli or peas—the cheese sauce makes everything taste better

Serving Suggestions

This casserole stands alone as a main course but pairs well with a tossed salad or simple steamed green beans. Bring it to potlucks serve on holiday brunch tables or slice into squares for weekday lunches

Cultural and Historical Context

While potato casseroles are classic across many cultures the combo of kielbasa sausage and creamy cheese is inspired by Eastern European comfort food traditions. Bringing those flavors into a homestyle casserole makes this dish both familiar and unique

Frequently Asked Questions

→ Can I use different types of sausage?

Yes! Andouille, turkey, or plant-based sausages work well for unique flavor profiles or dietary needs.

→ Which potatoes are best for this dish?

Yukon Gold or Russet potatoes offer a great balance of creaminess and structure. Peel them if you prefer a softer texture.

→ How do you make the casserole extra creamy?

Add a layer of sour cream before baking, or use half-and-half in the cheese sauce for extra richness.

→ Can this casserole be made ahead of time?

Absolutely. Assemble up to a day ahead, refrigerate covered, and bake as directed. Alternatively, freeze before or after baking.

→ What are some tasty add-ins?

Broccoli, peas, or bell peppers add color and nutrients. Try different cheeses for new flavors, like pepper jack or Gruyère.

Kielbasa Sausage Cheesy Potato Casserole

Smoky kielbasa, tender potatoes, and creamy cheese sauce baked to bubbly golden perfection for family-style comfort.

Prep Time
25 Minutes
Cook Time
65 Minutes
Total Time
90 Minutes
By: Casey

Category: Hearty Main Dishes

Difficulty: Intermediate

Cuisine: American

Yield: 8 Servings (One large 33×23 cm casserole)

Dietary: ~

Ingredients

→ Main Ingredients

01 400 g smoked kielbasa sausage, sliced into 6 mm rounds
02 1.5 kg potatoes (Yukon Gold or Russet), diced or thinly sliced
03 200 g sharp cheddar cheese, shredded and divided
04 1 small onion, finely chopped
05 2 cloves garlic, minced
06 43 g unsalted butter
07 23 g all-purpose flour
08 600 ml whole milk
09 5 ml Dijon mustard (optional)
10 5 g salt
11 2.5 g black pepper
12 2.5 g smoked paprika (optional)
13 2.5 g garlic powder

→ Topping (Optional)

14 60 g crushed crackers or plain breadcrumbs
15 14 g melted butter
16 Chopped parsley or green onions, for garnish

Instructions

Step 01

Preheat oven to 190°C. Lightly grease a 33×23 cm baking dish.

Step 02

Heat a skillet over medium. Cook kielbasa until browned on both sides, about 5–7 minutes. Remove and set aside.

Step 03

Melt butter in a saucepan over medium heat. Add onion and cook 2–3 minutes until softened. Stir in garlic and cook 30 seconds.

Step 04

Add flour to saucepan and stir constantly for 1 minute. Gradually whisk in milk until smooth. Add salt, pepper, paprika, garlic powder, and mustard. Cook, stirring, until the sauce thickens, 5–7 minutes. Stir in 150 g cheddar cheese until melted and creamy.

Step 05

Layer potatoes evenly in prepared baking dish. Top with browned kielbasa. Pour cheese sauce over and stir gently to combine.

Step 06

Sprinkle remaining 50 g cheddar on top. For a crunchy topping, mix crushed crackers or breadcrumbs with melted butter and sprinkle over casserole.

Step 07

Cover with foil and bake 40 minutes. Uncover and bake 20–25 minutes more, until golden and potatoes are fork-tender. Rest 5–10 minutes before serving.

Notes

  1. For even cooking, slice potatoes to an even thickness and arrange in a single, overlapping layer.
  2. Pre-shredded cheese may include anti-caking agents; freshly shredded cheese melts best.
  3. To reheat leftovers, use an oven at 175°C until heated through for best texture.
  4. Add broccoli, peas, or bell peppers to the potato layer for added vegetables.

Tools You'll Need

  • Large skillet
  • Medium saucepan
  • 33×23 cm (9×13-inch) baking dish
  • Oven
  • Cutting board and knife
  • Mixing spoon and whisk

Allergy Information

Please check ingredients for potential allergens and consult a health professional if in doubt.
  • Contains dairy (cheese, butter, milk)
  • Contains gluten (all-purpose flour, crackers or breadcrumbs)

Nutrition Facts (Per Serving)

It is important to consider this information as approximate and not to use it as definitive health advice.
  • Calories: 480
  • Total Fat: 27 g
  • Total Carbohydrate: 39 g
  • Protein: 20 g