There is something incredibly comforting about a dish that combines hearty flavors with effortless preparation, and that is exactly what the Crockpot Pierogi Casserole with Kielbasa Recipe delivers. Imagine tender, pillowy pierogies layered with smoky kielbasa, sweet onions, and creamy mushroom soup, all slow-cooked to perfection and topped with melty cheddar cheese. This casserole brings together the best of Eastern European comfort food in a way that’s perfect for busy days, family dinners, or when you want to impress guests with minimal fuss. Whether you’re a pierogi aficionado or trying something new, this dish promises rich taste and satisfying textures every single time.

Ingredients You’ll Need
This recipe relies on simple, straightforward ingredients that each play a crucial role in building layers of flavor and texture. From the hearty pierogies to the savory kielbasa and creamy sauce, every component is essential to make this casserole both hearty and delicious.
- Frozen pierogi (12 oz): Choose your favorite filling to bring tasty dough pockets that soak up all the creamy goodness as they cook.
- Smoked kielbasa (14 oz): Adds a smoky, slightly spicy bite that complements the mild pierogies beautifully.
- Onion (1 medium, diced): Sautéed to golden perfection, it adds sweetness and depth.
- Cream of mushroom soup (10.5 oz): The secret creamy base that binds everything and keeps it moist.
- Shredded cheddar cheese (1 cup): For a luscious, melty topping that brings a sharp, creamy finish.
- Seasonings (salt, pepper, garlic powder, paprika): Enhance the flavors with a balanced combination of savory and smoky notes.
How to Make Crockpot Pierogi Casserole with Kielbasa Recipe
Step 1: Sauté the Onions
Start by heating a skillet over medium heat and sauté the diced onions until they become translucent and fragrant. This step unlocks the onions’ natural sweetness and adds a beautiful caramelized flavor to the casserole. Taking a few extra minutes here makes a big difference in the final taste.
Step 2: Layer the Pierogi and Kielbasa
In the crockpot, begin by laying half of the frozen pierogies evenly across the bottom. These will start to soften and cook through during the slow-cook process. Next, add half of the sliced smoked kielbasa on top, along with the sautéed onions, distributing everything evenly for balanced flavor in every bite.
Step 3: Add the Cream of Mushroom Soup
Spread half of the cream of mushroom soup over the pierogi and kielbasa layers. This creamy soup acts as the rich sauce base that keeps the casserole moist and brings the layers together with a gentle earthiness.
Step 4: Season Generously
Sprinkle salt, pepper, garlic powder, and paprika over the soup layer. These seasonings are key—they brighten the casserole, add subtle heat, and enhance the smoky notes from the kielbasa.
Step 5: Repeat the Layers
Repeat steps two through four with the remaining pierogies, kielbasa, onions, soup, and seasonings. This layered approach ensures every spoonful has a perfect mix of every flavor and texture component.
Step 6: Slow Cook to Perfection
Cover the crockpot and cook on low for 6 to 8 hours. This slow, gentle cooking allows the pierogies to tenderize beautifully, the flavors to deepen, and everything to meld into an irresistible casserole.
Step 7: Add Cheese and Final Melt
In the last 30 minutes of cooking, sprinkle the shredded cheddar cheese evenly over the top. Cover again so the cheese can melt into a golden, gooey layer that finishes the dish with creamy richness.
How to Serve Crockpot Pierogi Casserole with Kielbasa Recipe

Garnishes
For an inviting presentation, top your casserole with a little fresh chopped parsley or chives. Their vibrant green color adds a fresh contrast, while a dollop of sour cream on the side offers a tangy counterpart that perfectly complements the creamy and smoky flavors.
Side Dishes
This hearty casserole pairs beautifully with simple side dishes like steamed green beans or a crisp garden salad. The freshness of the veggies cuts through the richness and rounds out the meal for a well-balanced plate.
Creative Ways to Present
Try serving individual portions in cute oven-safe ramekins straight from the crockpot, making for charming personal casseroles. Alternatively, garnish with crispy fried onions or sprinkle a bit of smoked paprika on top for a pop of color and smoky aroma that will wow your guests.
Make Ahead and Storage
Storing Leftovers
Leftover Crockpot Pierogi Casserole with Kielbasa Recipe keeps well in an airtight container in the refrigerator for up to 3 days. The flavors continue to develop, making your next meal just as tasty and satisfying as the first.
Freezing
You can freeze individual portions of this casserole for up to 2 months. Make sure to cool it completely before freezing in freezer-safe containers or bags. When ready to enjoy, thaw overnight in the refrigerator to maintain texture and flavor.
Reheating
Reheat leftovers gently in the microwave or oven until warmed through. To keep the topping from drying, cover with foil in the oven or add a sprinkle of extra cheese to refresh that gooey, melty finish.
FAQs
Can I use fresh pierogies instead of frozen for this Crockpot Pierogi Casserole with Kielbasa Recipe?
Absolutely! Fresh pierogies can be used, but since they cook faster, reduce the slow cooker time to avoid them becoming too soft or mushy. Start checking for doneness around the 4 to 5-hour mark.
What kind of kielbasa works best for this recipe?
Smoked kielbasa is ideal because its smoky flavor pairs so well with the creamy mushroom soup and cheese. You can use either pork, beef, or turkey kielbasa depending on your preference, just make sure it’s pre-cooked or smoked.
Is it possible to make this dish vegetarian?
Yes! Substitute the kielbasa with sautéed mushrooms, smoked tofu, or your favorite plant-based sausage, and use a vegetarian cream of mushroom soup to keep the rich flavor. The dish will still be hearty and delicious.
Can I add vegetables to the Crockpot Pierogi Casserole with Kielbasa Recipe?
Definitely! Adding bell peppers, mushrooms, or spinach can bring more texture and nutrition. Just sauté firmer veggies before layering so they soften nicely during cooking.
What should I do if I don’t have cream of mushroom soup on hand?
You can make a quick homemade version by combining sautéed mushrooms, cream, and a bit of flour or cornstarch to thicken. Alternatively, cream of celery or cream of chicken soup can be used for a different but still tasty twist.
Final Thoughts
If you’re craving a meal that feels like a warm hug in casserole form, the Crockpot Pierogi Casserole with Kielbasa Recipe is a must-try. Its ease of preparation combined with layers of cozy, comforting flavors makes it a weekly winner in any busy household. Give it a go and watch it quickly become one of your favorite go-to recipes to gather around and savor.
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Crockpot Pierogi Casserole with Kielbasa Recipe
- Prep Time: 15 minutes
- Cook Time: 6 to 8 hours
- Total Time: 6 hours 15 minutes to 8 hours 15 minutes
- Yield: 6 servings
- Category: Casserole
- Method: Slow Cooking
- Cuisine: American
Description
A comforting and easy-to-make Crockpot Pierogi Casserole with smoked kielbasa, sautéed onions, creamy mushroom soup, and melted cheddar cheese, perfect for a hearty meal.
Ingredients
Ingredients
- 12 oz frozen pierogi (your favorite filling)
- 14 oz smoked kielbasa, sliced
- 1 medium onion, diced
- 10.5 oz cream of mushroom soup
- 1 cup shredded cheddar cheese
- Salt, to taste
- Black pepper, to taste
- Garlic powder, to taste
- Paprika, to taste
Instructions
- Sauté Onions: Heat a skillet over medium heat and sauté the diced onion until it becomes translucent and soft, which takes about 5-7 minutes.
- Layer Ingredients in Crockpot: Begin by placing half of the frozen pierogi on the bottom of the crockpot. Next, add half of the sliced kielbasa and the sautéed onions evenly on top.
- Add Cream Soup: Spread half of the cream of mushroom soup evenly over the layered ingredients to add moisture and flavor.
- Season Layers: Sprinkle salt, black pepper, garlic powder, and paprika to taste over the layers for seasoning.
- Repeat Layering: Repeat the layering process with the remaining pierogi, kielbasa, sautéed onions, and cream of mushroom soup, then season again accordingly.
- Cook: Cover the crockpot with the lid and set it to cook on low heat for 6-8 hours, allowing all flavors to meld and pierogi to cook through.
- Add Cheese: In the last 30 minutes of cooking, sprinkle the shredded cheddar cheese on top of the casserole, then cover and let it melt.
- Serve: Once the cheese is melted and bubbly, turn off the crockpot and serve the casserole warm.
Notes
- Using frozen pierogi means no need to thaw before layering in the crockpot.
- Adjust seasoning according to your taste preference for a milder or spicier casserole.
- For added vegetables, consider adding bell peppers or mushrooms with the onions.
- Leftovers can be refrigerated for up to 3 days and reheated gently.
- This recipe can be doubled for larger gatherings if your crockpot is large enough.

