As I strolled through the local market last week, the aroma of savory kielbasa and buttery pierogi wafted through the air, instantly transporting me to cozy family dinners from my childhood. Today, I’m excited to share my take on that nostalgic comfort with this Easy Crockpot Pierogi Casserole with Kielbasa. This dish marries the hearty, comforting texture of pierogi with the smoky goodness of kielbasa, creating a warm embrace for your taste buds. What’s more, you can whip this up with minimal prep time, making it perfect for those hectic weekdays when you long for a home-cooked meal. Trust me, this casserole will have your family gathered around the table, sharing stories and laughter in no time. Ready to bring the warmth of Eastern European cuisine to your kitchen? Let’s dive in!

Why is This Casserole a Must-Try?
Simplicity at Its Finest: The preparation only takes minutes, allowing you to focus on what matters most—spending time with loved ones.
Rich, Comforting Flavors: Combining savory kielbasa with creamy pierogi creates a delightful flavor profile that evokes the warmth of home-cooked meals.
Versatile Ingredients: Use easily available ingredients, and feel free to swap the kielbasa for plant-based alternatives or fresh veggies for a lighter touch!
Crowd-Pleasing Appeal: This hearty casserole is perfect for family gatherings or potlucks, effortlessly feeding a hungry crowd.
Slow Cooker Convenience: Just set it and forget it! This dish slowly bubbles all day, filling your home with mouthwatering aromas and allowing you to enjoy a no-fuss evening.
If you’re looking for similar comforting dishes, check out my Loaded Meatloaf Casserole or even the delicious Hamburger Rice Casserole for more family-friendly options!
Crockpot Pierogi Casserole Ingredients
For the Casserole
- Frozen Pierogi – A perfect base that provides the comforting carbs; using fresh pierogi can speed up cooking time.
- Kielbasa – This adds a savory, protein-packed punch; feel free to substitute with smoked sausage or bratwurst if desired.
- Sour Cream – Brings in a creamy, tangy layer; Greek yogurt can serve as a healthier alternative.
- Onion – Intensifies flavor through sautéing; shallots are a great substitute for a milder taste.
- Cream of Mushroom Soup – Adds essential creaminess; you can swap it for cream of chicken or a homemade creamy soup if you prefer.
- Shredded Cheddar Cheese – For that rich, melty flavor; mozzarella works well if you’re looking for a lighter option.
- Butter – Provides depth and richness; olive oil can be a lighter substitute.
- Salt and Pepper – Key for seasoning; adjust to meet your dietary preferences.
For Garnish
- Chopped Chives – Adds a fresh hint and color;parsley or green onions make good replacements.
Unlock the comforting essence of Crockpot Pierogi Casserole with these simple and versatile ingredients, and let the slow cooker take care of the rest!
Step‑by‑Step Instructions for Crockpot Pierogi Casserole
Step 1: Prepare the Crockpot
Begin by spraying the inside of your crockpot with non-stick cooking spray to ensure an easy cleanup later. This simple step is crucial for preventing the delicious layers of your Crockpot Pierogi Casserole from sticking. We want every bite to be as perfect as possible!
Step 2: Layer the First Ingredients
Once your crockpot is ready, layer half of the frozen pierogi at the bottom. Make sure they are evenly spaced for even cooking. Next, add half of the sliced kielbasa and half of the chopped onion over the pierogi, creating a hearty base filled with flavor that will meld perfectly as it cooks.
Step 3: Mix the Creamy Sauce
In a separate bowl, combine the cream of mushroom soup, sour cream, and melted butter, stirring until well blended. This creamy mixture is what makes your Crockpot Pierogi Casserole so rich and comforting. Once fully mixed, spread half of this luscious sauce evenly over the layered ingredients in the crockpot.
Step 4: Repeat the Layers
Continuing with the layering process, add the remaining frozen pierogi on top of the sauce. Follow this with the rest of the kielbasa and onion to ensure that every bite is filled with that delightful savory goodness. Remember, these layers will create the comforting heartiness of your casserole.
Step 5: Final Sauce Layer
Spread the remaining creamy sauce over the top of the last layer, ensuring all ingredients are generously coated. This adds to the ultimate richness and flavor of your Crockpot Pierogi Casserole. Don’t forget to scrape the bowl to get every last drop of this wonderful mixture!
Step 6: Cook the Casserole
Cover the crockpot with its lid and set it to cook on low heat for about 4 to 5 hours. This slow cooking allows the flavors to blend beautifully, creating a indulgently creamy casserole. Check for tenderness as the cooking time nears completion to ensure that everything is cooked to perfection.
Step 7: Add Cheese Topping
During the last 30 minutes of cooking, sprinkle shredded cheddar cheese on top of your casserole. This melty addition will create a delightful golden crust that adds an extra layer of flavor and comfort to your Crockpot Pierogi Casserole. Allow it to melt beautifully as the dish finishes cooking.
Step 8: Serve and Garnish
Once ready, serve the casserole warm, garnished with freshly chopped chives for a touch of elegance and flavor. This final step brings freshness to your hearty dish. As you dish it out, take a moment to enjoy the wonderful aromas wafting through your kitchen, promising a delicious meal ahead!

How to Store and Freeze Crockpot Pierogi Casserole
Fridge: Store leftover Crockpot Pierogi Casserole in an airtight container for up to 3 days. Ensure the casserole is completely cooled before refrigerating to maintain freshness.
Freezer: For longer storage, freeze the casserole in a freezer-safe container for up to 1 month. Be sure to label with the date for easy tracking.
Reheating: When you’re ready to enjoy, thaw overnight in the fridge if frozen. Reheat in the microwave or oven until heated through, adding a splash of water or milk to keep it creamy.
Airtight Recommendations: For best results, wrap the container tightly in plastic wrap or aluminum foil before freezing to prevent freezer burn and preserve flavor.
Expert Tips for Crockpot Pierogi Casserole
Layer Evenly: Ensure an even distribution of pierogi and kielbasa in your layers for consistent cooking. Overcrowding can lead to uneven texture.
Creamy Consistency: For a creamier casserole, consider adding extra sour cream or a splash of milk to your sauce mixture. Adjust for desired richness.
Mind the Cooking Time: Check on your Crockpot Pierogi Casserole as it cooks; overdoing it can lead to mushy pierogi. Tenderness is key!
Explore Flavor Variations: Don’t hesitate to swap out the kielbasa for your favorite sausage or add in vegetables like spinach or mushrooms for added nutrition.
Storage Wisdom: Store leftovers in an airtight container for up to three days. Reheat gently to avoid drying out the creamy layers.
Browning for Flavor: For an extra depth of flavor, brown the kielbasa slices in a skillet before layering. This enhances the overall taste of your casserole.
What to Serve with Easy Crockpot Pierogi Casserole
Transform your cozy casserole into a complete meal with delightful pairings that complement every comforting bite.
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Simple Green Salad: A light salad dressed with vinaigrette offers a refreshing crunch, balancing the creaminess of the casserole.
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Roasted Vegetables: Caramelized veggies, like Brussels sprouts or carrots, bring an earthy sweetness that contrasts beautifully with the hearty pierogi.
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Garlic Bread: Crunchy garlic bread adds a satisfying texture, perfect for mopping up the creamy sauce and elevating your dinner experience.
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Coleslaw: A tangy coleslaw adds a vibrant crunch and a zesty contrast to the rich flavors of your casserole.
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Cucumber Salad: Cool, thinly sliced cucumbers with a touch of vinegar provide a refreshing bite that lifts the meal.
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Rye Bread: Nutty rye bread offers a cultural nod that pairs wonderfully with the Eastern European flavors of the dish.
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Light Beer or Cider: A crisp beer or hard cider complements the savory notes, enhancing the flavors of the dish while keeping the meal light.
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Apple Pie: Finish your meal on a sweet note with a slice of warm apple pie, echoing the comforting traditions of family gatherings.
These pairings create a harmonious dining experience, ensuring that every spoonful of Crockpot Pierogi Casserole is a delight to savor.
Crockpot Pierogi Casserole Variations
Feel free to tweak this comforting recipe to fit your taste! Let your creativity shine as you savor each delightful bite.
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Vegetarian Option: Replace kielbasa with plant-based sausage or omit it altogether for a meat-free delight. You won’t miss the meat with all the delicious flavors!
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Extra Veggies: Toss in bell peppers, spinach, or mushrooms for a nutrition boost. These colorful additions not only enhance the taste but also elevate the visual appeal.
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Creamier Texture: Increase the sour cream or mix in some cream cheese for an even richer sauce. The extra creaminess will envelop the pierogi beautifully.
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Spicy Kick: Use spicy kielbasa or add a pinch of cayenne pepper for some heat. This will awaken your palate and create a delightful twist on the traditional dish.
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Cheese Swaps: Instead of cheddar, experiment with gouda or pepper jack for a flavor twist. The melted cheese will create a wonderful, gooey layer that will have everyone coming back for more.
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Fresh Herbs: Swap chives for fresh parsley, dill, or green onions to brighten the flavor. Herbs can elevate the dish, adding layers of freshness and vibrancy.
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Unique Soup Base: Try using homemade creamy soup or a different canned variety like cream of celery for a new taste profile. This small change can make a big difference in richness.
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Nutty Aroma: Drizzle some melted butter or olive oil on top before serving for added richness. It not only enhances the flavor but also adds a luscious finish that makes each serving irresistible.
As you explore these variations, you may also want to check out my heartwarming Eggs Benedict Casserole or the family-friendly Loaded Meatloaf Casserole for more delicious inspirations!
Make Ahead Options
These Easy Crockpot Pierogi Casserole with Kielbasa are perfect for meal prep enthusiasts! You can layer the ingredients up to 24 hours in advance, making busy weeknights a breeze. To do this, simply follow the layering instructions—place the frozen pierogi, kielbasa, and onions in the crockpot, then cover with the creamy sauce, but hold off on adding the cheese. Once assembled, refrigerate the uncooked casserole overnight. When you’re ready to enjoy your meal, just pop the casserole in the slow cooker and cook on low for 4-5 hours, adding the cheddar cheese during the last 30 minutes for a melty, flavorful topping. This method ensures your casserole remains just as delicious, saving you precious time while still delivering comforting flavors!

Crockpot Pierogi Casserole Recipe FAQs
What type of frozen pierogi should I use?
Absolutely! You can use any flavor of frozen pierogi you prefer—cheese, potato, or even sauerkraut. If you want a quicker cooking time, opt for fresh pierogi instead. When selecting frozen pierogi, ensure there are no dark spots all over the package, indicating freshness.
How should I store leftover Crockpot Pierogi Casserole?
Store leftover Crockpot Pierogi Casserole in an airtight container for up to 3 days in the refrigerator. Be sure to let it cool completely before sealing to maintain its delicious creaminess. Reheat gently to preserve its texture, adding a splash of water or milk if needed.
Can I freeze the Crockpot Pierogi Casserole?
Yes, you can freeze it! For best results, divide the casserole into portions and place them in freezer-safe containers, ensuring they are airtight. It will keep well for up to 1 month. When you’re ready to enjoy it, thaw overnight in the fridge and then reheat gently, ensuring it stays creamy.
What should I do if the casserole turns mushy?
If your casserole turns out mushy, the most likely cause is overcooking or too many layers packed into the crockpot. To avoid this, layer your ingredients evenly and avoid packing them down too tightly. Next time, keep an eye on the cooking time—aim for tender pierogi without sacrificing texture!
Are there any dietary considerations to keep in mind?
Definitely! If you’re cooking for someone with allergies, check that the kielbasa is gluten-free, as some brands may contain gluten. For a vegetarian or vegan option, feel free to swap out kielbasa for plant-based sausages and use dairy-free sour cream. Customize it to suit your family’s dietary needs!
Can I add vegetables to the casserole?
Very! You can absolutely add vegetables such as bell peppers, spinach, or mushrooms for added nutrition. Simply layer them in with the pierogi and kielbasa. Not only does this boost the flavor, but it also makes for a colorful and nutritious meal!

Hearty Crockpot Pierogi Casserole Your Family Will Love
Ingredients
Equipment
Method
- Prepare the Crockpot by spraying the inside with non-stick cooking spray.
- Layer half of the frozen pierogi at the bottom of the crockpot.
- Add half of the sliced kielbasa and half of the chopped onion over the pierogi.
- Mix the cream of mushroom soup, sour cream, and melted butter in a bowl.
- Spread half of this creamy sauce over the layered ingredients in the crockpot.
- Add the remaining frozen pierogi on top of the sauce, followed by the rest of the kielbasa and onion.
- Spread the remaining creamy sauce over the top of the last layer.
- Cover and cook on low heat for about 4 to 5 hours.
- During the last 30 minutes, sprinkle shredded cheddar cheese on top.
- Serve warm, garnished with freshly chopped chives.
