Crockpot Pierogi Casserole Kielbasa

The smell of kielbasa sizzling in a skillet always takes me back to my grandmother's tiny kitchen, where she'd cook up Eastern European comfort food while snow fell outside the windows. This crockpot version came about on one of those brutal February days when I couldn't bear standing over a hot stove but still needed something that felt like a warm hug. Now it's become my go-to for winter potlucks and family gatherings—everyone goes home with the recipe and full bellies.

I first made this for a Super Bowl party when I completely forgot about hosting until two hours before kickoff. The slow cooker saved my life, and honestly, people were more excited about this casserole than the actual game. Now my friend texts me every fall asking when I'm going to make it again.

Ingredients

• Frozen pierogi: They hold up beautifully in the slow cooker and become perfectly tender without getting mushy
• Kielbasa: This smoky sausage is essential for that authentic Eastern European flavor we all love
• Cream of mushroom soup: Creates an incredibly creamy sauce that binds everything together
• Sour cream: Adds that tangy richness that cuts through all the heaviness
• Cheddar cheese: Use sharp cheddar for the best flavor that really stands up to the kielbasa
• Yellow onion: Thinly sliced they become sweet and mellow after hours of slow cooking
• Garlic powder, black pepper, smoked paprika: This trio builds layers of flavor that develop beautifully over time
• Fresh chives or parsley: That pop of freshness and color makes the whole dish look restaurant worthy

Instructions

Prepare your canvas:

Give your slow cooker insert a quick spray or rub with oil to prevent any sticking later on

Build the foundation:

Spread half those frozen pierogi across the bottom in one even layer, then scatter half the kielbasa and onion slices on top like you're tucking them in

Whisk up the magic sauce:

In a bowl, combine the soup, sour cream, garlic powder, pepper, and paprika until it's silky smooth and smells absolutely incredible

Sauce it up:

Spoon half that creamy mixture over your first layer, making sure every pierogi gets some love, then sprinkle with half the cheddar

Repeat and complete:

Do it all again—pierogi, sausage, onion, sauce, cheese—until everything is nestled in there

Let it work its magic:

Cover it up and walk away for 4 hours on low until it's bubbling and smells like the best thing that's ever happened to your kitchen

The finishing touch:

Scatter those fresh herbs on top right before serving and watch everyone's faces light up

Save

My dad now requests this for his birthday dinner instead of going out to a restaurant. There's something about that combination of flavors that just makes people feel at home, no matter where they're from.

Make It Your Own

I've discovered that sauerkraut pierogi work beautifully here if you want extra tang. Sometimes I add mushrooms when I remember to buy them at the store.

What To Serve With It

A crisp green salad with vinaigrette cuts through the richness perfectly. Steamed broccoli or roasted green beans also make excellent companions.

Storage And Reheating

This keeps beautifully in the refrigerator for up to four days and actually tastes better after the flavors have had time to really meld together.

• Reheat individual portions in the microwave for about 2 minutes
• Larger portions do best in a 350°F oven covered with foil
• Freezing works great—just thaw overnight before reheating

Save

There's nothing quite like lifting that slow cooker lid after four hours and seeing that golden, bubbling masterpiece waiting for you.

Recipe FAQs

→ Can I use different types of pierogi in this casserole?

Absolutely! The notes suggest trying various frozen pierogi flavors like sauerkraut or spinach to alter the taste profile.

→ What can I use instead of kielbasa?

For a lighter alternative, you can swap the kielbasa with turkey sausage or smoked chicken sausage.

→ How can I add more vegetables to this dish?

Consider incorporating sautéed mushrooms or fresh baby spinach into the layers for additional vegetables and nutrients.

→ What are some good side dishes to serve with this casserole?

This hearty casserole pairs wonderfully with a simple side like steamed broccoli or a crisp green salad to balance the richness.

→ What slow cooker size is recommended for this dish?

A 6-quart slow cooker (crockpot) is the recommended tool for preparing this casserole to ensure ample space for all ingredients.

→ Can I prepare this casserole ahead of time?

While the actual assembly is quick, you can chop your onion and slice the kielbasa in advance. The casserole is best cooked fresh, but leftovers reheat well in the microwave or oven.