If you’re looking for a hearty, no-fuss meal that delivers big on flavor, this Crockpot Pierogi Casserole with Kielbasa is exactly what you need. With its creamy layers of pierogies, savory kielbasa, and melted cheese, this dish is the perfect comfort food for busy weeknights or cozy family dinners. Plus, the magic of the crockpot does all the hard work for you, leaving you with a stress-free dinner that’s as satisfying as it is delicious.
Why You’ll Love This Recipe
- It’s a one-pot wonder that saves you time and effort.
- Packed with rich, creamy flavors that the whole family will love.
- Customizable with your favorite vegetables, cheeses, and seasonings.
- Perfect for meal prep, leftovers, or potluck gatherings.

Ingredients for Crockpot Pierogi Casserole
For this recipe, you’ll need a mix of pantry staples and fresh ingredients. Here’s everything you need:
Main Ingredients:
- 2 (16-ounce) packages of frozen pierogies (choose your favorite flavor – cheese, potato, or a combo)
- 1 pound kielbasa or smoked sausage, sliced into 1/4-inch rounds
- 1 cup sour cream
- 1 (10.5-ounce) can cream of mushroom soup
- 1 cup shredded cheddar cheese
- 1 small onion, diced
- 1/4 cup milk
- 2 tablespoons butter
- Salt and pepper, to taste
Optional Add-ins:
- Chopped green onions or fresh parsley for garnish
- 1 cup frozen peas or corn (for extra veggies)
- 1 teaspoon garlic powder or paprika (for added flavor)
Step-by-Step Directions
1. Prepare Your Ingredients
- Slice the kielbasa into thin rounds and dice the onion.
- Gather all ingredients and grease your crockpot with a light coating of non-stick spray or butter.
2. Layer the Ingredients
- Begin by spreading a layer of frozen pierogies across the bottom of the crockpot.
- Add a layer of sliced kielbasa on top, followed by diced onions.
- Sprinkle some shredded cheddar cheese over the top.
3. Mix the Sauce
- In a medium-sized bowl, whisk together the sour cream, cream of mushroom soup, milk, and melted butter.
- Season the mixture with a pinch of salt, pepper, and any additional seasonings (e.g., garlic powder or paprika).
4. Assemble the Casserole
- Pour the prepared sauce evenly over the pierogi and kielbasa layers in the crockpot.
- Sprinkle the remaining shredded cheese on top.

5. Cook in the Crockpot
- Cover the crockpot with its lid and cook on low heat for 4-5 hours or high heat for 2-3 hours, until the pierogies are tender and the sauce is bubbling.
6. Serve and Enjoy
- Once cooked, garnish the casserole with freshly chopped green onions or parsley for a pop of color.
- Serve hot and enjoy this creamy, cheesy delight!
Servings and Timing
- Servings: This recipe yields approximately 6 hearty servings.
- Prep Time: 10 minutes
- Cook Time: 4-5 hours on low or 2-3 hours on high.
- Total Time: About 5 hours (set it and forget it!).
Variations for Crockpot Pierogi Casserole
The beauty of this recipe is its flexibility. Here are some fun ways to customize your casserole:
- Vegetarian Option: Skip the kielbasa and add sautéed mushrooms, spinach, or other hearty vegetables.
- Spicy Kick: Use a spicy kielbasa or add a dash of cayenne pepper or crushed red pepper flakes to the sauce.
- Cheese Lover’s Delight: Swap cheddar for a blend of mozzarella, gouda, or pepper jack for a different flavor profile.
- Healthier Version: Use low-fat sour cream, reduced-fat cheese, and turkey sausage instead of traditional kielbasa.
How to Store and Reheat
Storage
- Refrigerator: Store any leftovers in an airtight container in the refrigerator for up to 3-4 days.
- Freezer: While the casserole can be frozen, the texture of pierogies may change slightly upon reheating. If you choose to freeze, place portions in freezer-safe containers for up to 2 months.
Reheating
- Microwave: Heat individual servings in the microwave for 1-2 minutes until warmed through.
- Oven: Reheat in a covered oven-safe dish at 350°F (175°C) for about 15 minutes.
- Crockpot: You can reheat the entire dish in the crockpot on low for 1-2 hours.

10 FAQs About Crockpot Pierogi Casserole
1. Can I use fresh pierogies instead of frozen ones?
Yes, fresh pierogies work just as well. You may need to reduce the cooking time slightly since they don’t take as long to cook.
2. What’s the best kielbasa to use?
Go for high-quality smoked kielbasa or sausage for the best flavor. Turkey kielbasa is also a lighter option.
3. Can I make this dish in the oven instead?
Absolutely! Layer the ingredients in a greased casserole dish, cover with foil, and bake at 350°F (175°C) for 40-50 minutes.
4. What other soups can I use if I don’t like cream of mushroom?
Cream of chicken or cream of celery soup are great alternatives.
5. Can I make this casserole ahead of time?
Yes, assemble the dish the night before and store it in the refrigerator. Cook it in the crockpot the next day.
6. Is this recipe gluten-free?
Not as written, but you can use gluten-free pierogies and check the soup and kielbasa labels for gluten-free options.
7. How do I prevent the pierogies from becoming mushy?
Cook on low heat and avoid overcooking. Frozen pierogies hold up better in the slow cooker than fresh ones.
8. Can I double the recipe?
Yes, double the ingredients and use a larger crockpot to accommodate the extra volume.
9. What side dishes go well with this casserole?
Serve it with a simple green salad, roasted vegetables, or crusty bread to complete the meal.
10. Can I add bacon to this recipe?
Yes! Crispy bacon bits can be sprinkled on top for extra flavor and crunch.
Conclusion
This Crockpot Pierogi Casserole with Kielbasa is everything you want in a cozy, comforting meal—rich, creamy, and bursting with flavor. Whether you’re a fan of traditional pierogies or new to this Polish-inspired dish, it’s sure to become a household favorite. With its simple preparation, versatility, and irresistible taste, this recipe is ideal for weeknight dinners, potlucks, or any occasion where you need a crowd-pleaser.
Give it a try, and don’t forget to experiment with your favorite ingredients to make it your own. Once you’ve made this dish, you’ll see why it’s a classic in so many kitchens!
Ready to make your own comforting casserole? Let me know how it turns out!