Looking for a hearty, comforting dinner that feels like a warm hug in a baking dish? This Kielbasa Sausage Cheesy Potato Casserole is a crave-worthy blend of smoky sausage, tender potatoes, and rich, gooey cheese. It’s the kind of dish that brings everyone running to the dinner table and leaves no leftovers behind.

This casserole is the ultimate blend of flavor and simplicity. With just a handful of ingredients and a few easy steps, you get a bubbling, golden-topped masterpiece perfect for busy weeknights or laid-back Sunday dinners. It’s just as welcomed at potlucks and family gatherings as it is on a quiet night at home.

Why You’ll Love This Kielbasa Sausage Cheesy Potato Casserole

It hits all the comfort food checkboxes: cheesy, creamy, savory, and filling. The kielbasa adds a smoky bite that balances perfectly with the soft, creamy potatoes and melty cheese. It’s also a flexible dish—you can prep it ahead, freeze for later, or even toss in leftover veggies hiding in your fridge. Plus, it’s naturally a crowd-pleaser with kids and adults alike.

What Kind of Potatoes Work Best in This Casserole?

This recipe shines brightest with frozen diced or shredded hash browns, which save time and bake beautifully. But if you want to use fresh potatoes, go for russet or Yukon gold. Just make sure they’re diced small and par-cooked to ensure they’re fork-tender by the time your casserole is bubbling and browned.

Ingredients for the Kielbasa Sausage Cheesy Potato Casserole

This casserole keeps things simple but flavorful. The ingredients are easy to find and come together effortlessly.

Kielbasa sausage: Sliced into rounds, this smoky sausage brings richness and depth to every bite.

Frozen diced potatoes (or shredded hash browns): They make this recipe quick and convenient, while still giving you that classic potato texture.

Cream of chicken soup: Acts as the creamy binder, adding richness and that unmistakable comfort-food feel.

Sour cream: Gives the casserole tanginess and extra creaminess.

Shredded cheddar cheese: The star of the show. It melts into the sauce and forms a golden crust on top.

Chopped onions: Add sweet-savory flavor that balances the richness.

Butter: Helps everything come together and adds that irresistible buttery finish.

Salt and pepper: To bring out all the flavors.

Kielbasa Sausage Cheesy Potato Casserole (1)

How To Make the Kielbasa Sausage Cheesy Potato Casserole

Step 1: Preheat and Prep

Set your oven to 350°F and grease a 9×13-inch baking dish. If you’re using fresh potatoes, boil them until just tender, then dice.

Step 2: Cook the Kielbasa

In a skillet over medium heat, sauté the sliced kielbasa until browned. This step adds flavor and texture, so don’t skip it.

Step 3: Mix the Base

In a large mixing bowl, combine the frozen potatoes, cream of chicken soup, sour cream, shredded cheese (save some for topping), chopped onions, melted butter, salt, and pepper. Stir until everything is well combined.

Step 4: Add the Kielbasa

Fold the browned kielbasa slices into the potato mixture. Make sure everything is evenly distributed.

Step 5: Assemble and Bake

Pour the mixture into your greased baking dish and smooth it out. Sprinkle the remaining cheese on top. Bake uncovered for 45 to 55 minutes, or until golden and bubbly.

Step 6: Cool and Serve

Let it sit for about 10 minutes before serving to let it set up. Then scoop, serve, and enjoy the cheesy, savory magic.

How to Serve and Store This Casserole

This dish is filling enough to be the main event, especially for weeknight dinners or potluck spreads. It comfortably feeds about 6 people, depending on portion size. For leftovers, store the casserole in an airtight container in the fridge for up to 4 days. You can reheat it in the oven at 350°F or microwave individual portions.

Want to freeze it? Assemble the casserole but skip the baking. Cover it tightly with foil and freeze for up to 3 months. When you’re ready to enjoy it, let it thaw in the fridge overnight and bake as directed.

What to Serve With Kielbasa Sausage Cheesy Potato Casserole?

A Crisp Green Salad

A light, fresh salad with vinaigrette cuts through the richness of the casserole and adds a refreshing bite.

Steamed Broccoli

Simple and healthy, broccoli adds balance and color to your plate.

Roasted Brussels Sprouts

Roast them until crispy with olive oil and a sprinkle of sea salt. Their earthiness complements the creamy casserole.

Warm Dinner Rolls

Soft, buttery rolls are perfect for scooping up cheesy bits left on the plate.

Applesauce

That sweet-tart contrast is especially nostalgic and works surprisingly well.

Garlic Green Beans

A quick sauté with garlic and a splash of lemon can elevate plain green beans into a bright, zippy side.

Pickles or Sauerkraut

If you’re leaning into the Eastern European flair of kielbasa, these are traditional and tasty companions.

Want More Casserole Ideas?

If this dish made your dinner table a little happier, here are more comfort classics you’ll love:

• One Pot Smoked Sausage Pasta when you want smoky sausage in a creamy pasta dish.
• Cheesy Baked Tortellini with Meat Sauce for baked pasta lovers.
• Creamy Ground Beef Alfredo Pasta when you need creamy and meaty all in one.
• Creamy Beef and Shells for easy weeknight comfort food.
• Stovetop Creamy Ground Beef Pasta if you love quick meals with loads of flavor.

Save This Recipe For Later

📌 Save this recipe to your Pinterest dinner board so you can come back to it any time.

Let me know in the comments how it turned out for you. Did you go with hash browns or cube the potatoes yourself? Did you add any veggies? I love seeing how these recipes come to life in your kitchens.

Explore beautifully curated dinner inspirations on Mia Recipes on Pinterest and discover your new favorite comfort dish.