Crockpot Pierogi Casserole With Kielbasa

If you dream of ultra-comforting, stick-to-your-ribs goodness, this Crockpot Pierogi Casserole With Kielbasa is absolutely what you’ve been waiting for! Each bite is bursting with tender potato-filled pierogies, smoky butter-seared kielbasa, and a creamy cheese sauce that’s rich, melty, and just a little bit gooey.

What makes this a must-try? It’s a true dump-and-go meal that transforms humble ingredients into a weeknight dinner masterpiece. The slow cooker does all the heavy lifting, melding those classic Polish flavors with almost zero effort—perfect for busy days, potlucks, or cozying up with family on a chilly evening.

Inspired by hearty Eastern European casseroles (and a family favorite at every holiday table!), this recipe will have everyone coming back for seconds. Effortless, comforting, and outrageously delicious—this is a casserole you’ll crave all year long!

Why You'll Love This Recipe

• Ultimate comfort food: Creamy, cheesy, and loaded with savory kielbasa and soft pierogies, it’s so satisfying!
• Incredibly easy: Minimal prep. Just layer, pour, and let the Crockpot do its magic.
• Feeds a crowd: Makes enough for the whole family or a potluck gathering with friends.
• Customizable flavors: Mix in your favorite veggies, sauces, or sausages to make it your own.

Key Ingredients for Crockpot Pierogi Casserole With Kielbasa

See recipe card below for full list of measurements, ingredients, and instructions.

Frozen Potato and Cheese Pierogies

The heart of this dish! Frozen pierogies offer pillowy dough filled with creamy potatoes and tangy cheese for irresistible comfort. No need to thaw—just add straight to the slow cooker. If you prefer homemade, feel free to use those, or try different flavors like onion or mushroom for variety. Gluten-free pierogies can be used if you have dietary needs.

Kielbasa

Smoky, garlicky kielbasa sausage gives this casserole its signature Polish flavor and heartiness. Slice it into rounds for the best texture. You can use turkey kielbasa for a lighter option or substitute with smoked sausage or even chorizo for a little kick.

Cream Cheese

This makes the sauce ultra-creamy and adds a luscious tang. Soften the cream cheese beforehand for easier blending. Neufchâtel can be used for a lighter feel, or for extra depth, try a dollop of sour cream.

Shredded Cheddar Cheese

Cheddar melts into gooey perfection, creating a comforting, bubbling top. Use sharp cheddar for a bolder flavor, or a blend like Monterey Jack and mozzarella for a milder, stretchier cheese pull.

Cream of Mushroom Soup

A classic base for casseroles, this soup delivers rich flavor and binds everything together. You can use cream of chicken or celery for a different spin, or make your own homemade version if you’re avoiding canned soups.

Instructions for Crockpot Pierogi Casserole With Kielbasa

See recipe card below for full list of measurements, ingredients, and instructions.

Prep the Ingredients

Slice the kielbasa into rounds and thinly slice the onion. No need to thaw the pierogies, making this recipe even more fuss-free!

Make the Creamy Sauce

In a medium mixing bowl, combine the cream of mushroom soup, cream cheese, milk, garlic powder, and black pepper. Whisk until smooth and thoroughly blended. If your cream cheese is a little lumpy, don’t worry—it will melt perfectly in the slow cooker.

Layer Everything in the Crockpot

Spray your slow cooker with nonstick cooking spray. Arrange half the frozen pierogies in an even layer in the bottom. Top with half the sliced kielbasa and half the onions. Spoon and spread half of the creamy sauce over the top, then sprinkle with half of the shredded cheddar. Repeat this layering process with the remaining ingredients.

Slow Cook Until Bubbly and Tender

Cover and cook on low for 4 hours, or on high for about 2 hours. The pierogies should be hot and tender, the cheese gooey, and everything bubbling around the edges. Avoid overcooking, as the pierogies can turn mushy.

Garnish and Serve

Once done, sprinkle chopped parsley over the top for a fresh pop of color. Serve the casserole hot, scooping big, cheesy portions onto plates.

Recipe Variations

Give It a Kick

Craving some heat? Stir in a pinch of crushed red pepper flakes or sliced jalapeños with the sauce for a spicy twist. You can also use spicy sausage instead of kielbasa.

Veggie-Loaded

Boost the nutrition by adding chopped spinach, bell peppers, or even broccoli florets to your layers. Sauté the veggies briefly before adding for the best texture.

Swap the Soup

Not a fan of cream of mushroom? Cream of chicken, celery, or even a homemade roux works just as well. You can also make it extra rich with a splash of heavy cream.

Make It Gluten-Free

Use gluten-free pierogies and a gluten-free soup to suit dietary needs. Be sure to double-check all ingredient labels to keep this safe for gluten sensitivities.

Cheesy Upgrade

Try different cheeses for a new spin—mozzarella, Monterey Jack, or a combo of Colby and Swiss are all delicious options!

Serving Suggestions

Round out your Crockpot Pierogi Casserole With Kielbasa dinner with a crisp green salad tossed in a tangy vinaigrette, plus a side of steamed green beans or roasted Brussels sprouts. For extra indulgence, pair with crusty bread to mop up all that creamy sauce. Garnish with lots of chopped fresh parsley and a fresh grind of black pepper for the perfect finish.

Storage and Reheating

Store leftovers in an airtight container in the refrigerator for up to 4 days. Reheat individual portions in the microwave until hot (about 2-3 minutes), or warm larger amounts in a covered baking dish at 350°F for 20-25 minutes. To freeze, portion the cooled casserole into airtight, freezer-safe containers and freeze for up to 2 months—just thaw overnight in the fridge and reheat as above. Keep in mind the texture of the pierogies may soften slightly after freezing.

Frequently Asked Questions About Crockpot Pierogi Casserole With Kielbasa (FAQ)

Q: Can I use homemade pierogies instead of frozen?
A: Absolutely! If you have the time and a favorite recipe, homemade pierogies make this casserole even more special. You can add them straight from the fridge or freezer.

Q: Can I prep this dish the night before?
A: Yes, you can assemble everything in your slow cooker insert, cover, and refrigerate overnight. In the morning, just pop it into the slow cooker and set the timer.

Q: What can I use instead of kielbasa?
A: Smoked sausage, turkey sausage, or even plant-based sausage work fantastic in this recipe. Adjust seasonings as needed to complement the flavors.

Q: How do I prevent the pierogies from getting soggy?
A: Avoid overcooking and stick to the recommended cook times. Layering the sausage and onions also helps keep the texture just right.

Craving something cozy, cheesy, and completely fuss-free? This Crockpot Pierogi Casserole With Kielbasa is pure comfort food magic—perfect for busy nights or special get-togethers. Give it a try and let me know what you think in the comments below. I love hearing your feedback, so leave a rating and share your delicious casserole creations!