As the aroma of savory kielbasa fills the kitchen, I can’t help but smile at the comforting memories this dish brings. My Crockpot Pierogi Casserole with Kielbasa makes for an effortless weeknight dinner that’s as satisfying as it is delicious. With tender pierogi nestled alongside flavorful kielbasa, this hearty casserole is a true crowd-pleaser that requires minimal time in the kitchen—leaving you more moments to enjoy with loved ones. Plus, it’s versatile enough to adapt to various dietary preferences, making it an ideal choice for everyone gathered around the table. What flavor combinations will you try to make this dish your own?

Why is this casserole a must-try?
Comforting Simplicity: This recipe transforms humble ingredients into a heartfelt meal using just your crockpot.
Rich, Savory Layers: Each bite is packed with tender pierogi and flavorful kielbasa, creating a well-rounded taste that warms your soul.
Versatile Customizations: Whether you prefer vegetarian options or different cheeses, you can easily tweak it to suit your personality or dietary needs. Try omitting the kielbasa for a delicious vegetarian twist or explore using a blend of cheeses!
Time-Saving Delight: With hands-off cooking, you can set it and forget it, freeing your evening for what really matters.
Crowd-Pleasing Appeal: Perfect for gatherings, this casserole satisfies both comfort food lovers and those seeking a hearty weeknight dinner. Just like my savory bread pudding with mushrooms and gruyere, it’s sure to impress your guests!
Crockpot Pierogi Casserole with Kielbasa Ingredients
For the Casserole
• Frozen Pierogi – Serve as the hearty base; fresh pierogi can be used but reduce cooking time.
• Kielbasa (1 pound) – Provides a smoky flavor and protein boost; swap it for smoked sausage or bratwurst if desired.
• Sour Cream (1 cup) – Adds creaminess and richness; Greek yogurt can serve as a lighter alternative.
• Onion (1, chopped) – Introduces sweetness and depth; shallots can also be a delicious substitute.
• Condensed Cream of Mushroom Soup (1 can, 10.5 oz) – Acts as a creamy binder; you can replace it with a homemade or cream of chicken soup.
• Shredded Cheddar Cheese (1 cup) – For a gooey, melted topping; feel free to mix in your favorite cheese blend.
• Melted Butter (1/4 cup) – Elevates richness; can be omitted for a lighter version.
• Salt and Pepper – Essential for seasoning; adjust to match your flavor preferences.
For the Garnish
• Chopped Chives – Adds a pop of color and fresh flavor; green onions can be a nice substitute.
Keep these Crockpot Pierogi Casserole with Kielbasa ingredients on hand, and get ready to delight your taste buds with a meal that warms the heart and satisfies the appetite!
Step‑by‑Step Instructions for Crockpot Pierogi Casserole with Kielbasa
Step 1: Prepare the Crockpot
Start by spraying your crockpot with non-stick cooking spray to ensure an easy release of the casserole later. This simple step will save you time on cleanup. Grab your trusted slow cooker and set it up on a flat surface, as we want to create the perfect base for our Crockpot Pierogi Casserole with Kielbasa!
Step 2: Layer the Ingredients
Begin layering by adding half of the frozen pierogi at the bottom of the crockpot. Make sure to spread them evenly for consistent cooking. On top of the pierogi, layer half of the sliced kielbasa and half of the chopped onion, creating a delicious foundation. The aroma of the kielbasa will start to blend with the onion, adding a delightful fragrance to your kitchen.
Step 3: Mix the Creamy Sauce
In a medium-sized mixing bowl, combine the condensed cream of mushroom soup, sour cream, and melted butter. Stir until everything is well incorporated, creating a creamy mixture that will bind your Crockpot Pierogi Casserole with Kielbasa together. The velvety sauce is essential for achieving that rich flavor we all adore.
Step 4: Add the Creamy Mixture
Spread half of the creamy sauce mixture over the layered pierogi, kielbasa, and onion in the crockpot. Use a spatula to ensure even coverage, allowing the sauce to seep into the layers below. This step is crucial for creating that comforting, cohesive texture as the casserole cooks.
Step 5: Repeat the Layering
Now it’s time to repeat the process! Add the remaining frozen pierogi on top, followed by the rest of the kielbasa and onion. Then, pour the remaining creamy sauce over this new layer. This double layering method helps to infuse every bite of pierogi and kielbasa with that luscious creaminess we crave.
Step 6: Cover and Cook
Cover the crockpot with its lid and set it to cook on low for 4-5 hours. This slow cooking process allows the flavors to meld beautifully while the pierogi become tender and delightful. As the casserole cooks, your kitchen will fill with savory smells that hint at the delicious meal to come.
Step 7: Add Cheese for Gooey Texture
In the last 30 minutes of cooking, sprinkle the shredded cheddar cheese evenly over the top of the casserole. This allows it to melt beautifully and create that gooey texture that is simply irresistible. Enjoy the sight of the bubbling cheese as the final touch to your hearty dish.
Step 8: Serve and Garnish
Once cooking is complete, carefully serve the Crockpot Pierogi Casserole with Kielbasa warm. For an appealing presentation, garnish each serving with chopped chives. The fresh color will elevate the dish, making it not only comforting but visually inviting as well.

What to Serve with Crockpot Pierogi Casserole with Kielbasa
A hearty casserole like this brings warmth and togetherness around the dinner table, inviting everyone to savor every bite.
- Light Side Salad: A crisp salad with mixed greens and a tangy vinaigrette perfectly balances the rich flavors of the casserole.
- Garlic Bread: Crunchy garlic bread provides a delightful contrast, perfect for scooping up every bit of that creamy goodness.
- Steamed Vegetables: A medley of broccoli and green beans offers a fresh, vibrant element, enhancing the meal’s color and nutrition.
- Applesauce: Traditional and comforting, applesauce adds a touch of sweetness that complements the savory notes of the kielbasa.
- Pickled Beets: Their tangy flavor cuts through the richness, bringing a delightful brightness and unique texture to the plate.
- Ice Cold Beer: A crisp lager or pilsner pairs beautifully with the hearty, savory casserole, making for a warm and satisfying meal experience.
Each pairing elevates the dining experience, ensuring your family and friends leave the table with satisfied smiles and full bellies.
Expert Tips for Crockpot Pierogi Casserole
Browning Kielbasa: Sear the kielbasa before layering to amplify its flavor and add depth to the casserole.
Vegetarian Option: Swap kielbasa for plant-based sausage or add extra veggies to cater to dietary preferences while still enjoying a hearty dish.
Cooking Time Awareness: Don’t rush! Allow the casserole to cook on low for the full 4-5 hours for tender pierogi and melded flavors.
Cheese Variations: Feel free to experiment with different cheeses for unique flavor profiles. A mix of mozzarella and cheddar adds a delightful twist.
Storage Tips: Cool completely before storing leftovers in an airtight container. The Crockpot Pierogi Casserole with Kielbasa can last up to 3 days in the fridge or 1 month in the freezer.
Storage Tips for Crockpot Pierogi Casserole with Kielbasa
Fridge: Store any leftovers in an airtight container for up to 3 days. Make sure to cool the casserole completely before refrigerating to preserve its texture and flavor.
Freezer: If you want to keep it for longer, freeze the casserole in a freezer-safe container for up to 1 month. To prevent freezer burn, wrap it tightly in plastic wrap before sealing.
Reheating: When ready to enjoy, thaw in the fridge overnight, then reheat in the microwave or oven until heated through. For even heating, cover with foil while in the oven.
Serving Suggestions: For best taste, garnish with fresh chives right before serving to enhance flavor and appearance, bringing the warmth of the Crockpot Pierogi Casserole with Kielbasa back to life!
Make Ahead Options
These Crockpot Pierogi Casserole with Kielbasa options are perfect for busy cooks looking to save time during the week! You can prepare the entire casserole up to 24 hours in advance by layering the ingredients in the crockpot, covering it tightly, and refrigerating it until ready to cook. Simply wait until you’re ready to serve, then place it directly into the crockpot and cook on low for 4-5 hours. For even longer storage, you can freeze portions of the unbaked casserole for up to 1 month; just thaw in the refrigerator overnight before cooking. This way, you can enjoy a comforting, home-cooked meal that’s just as delicious, with minimal effort on busy nights!
Crockpot Pierogi Casserole with Kielbasa Variations
Feel free to explore new flavor horizons with these exciting twists on your casserole!
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Vegetarian Option: Substitute kielbasa for plant-based sausage or add extra vegetables like bell peppers and mushrooms for a nutritious, hearty dish. It will still satisfy like a warm hug!
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Lower Sodium: Use low-sodium cream of mushroom soup and cheese to make this dish heart-healthier without sacrificing flavor. Your taste buds will thank you!
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Homemade Pierogi: Swap frozen pierogi for homemade ones for an incredible fresh taste. Just be aware of potential changes in cooking time.
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Cheese Blend: Experiment with various cheese types such as mozzarella or pepper jack. Each different cheese adds a unique flavor and delightful meltiness that enhances the overall experience.
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Spicy Kick: Incorporate spicy kielbasa or add a dash of cayenne pepper to the mixture for an extra zing. This will add an exciting layer of warmth to the comforting dish!
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Extra Creaminess: For an even creamier texture, mix in an extra dollop of sour cream or Greek yogurt before serving. This way, every bite feels indulgently luscious.
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Herb Boost: Sprinkle in fresh herbs like dill or parsley to elevate the flavor even further. It’s a great way to add brightness and freshness to your cozy casserole!
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Accompany with Sides: Serve with a side salad dressed with vinaigrette or a loaf of sourdough bread to complete your meal. Just like with my Chicken Stuffing Casserole, these additions truly enhance the comfort experience!

Crockpot Pierogi Casserole with Kielbasa Recipe FAQs
What kind of pierogi should I use?
Absolutely! Most recipes call for frozen pierogi to save time; however, you can use fresh pierogi—just keep an eye on the cooking time to avoid overcooking. Fresh pierogi may only need 2-3 hours to reach that perfect tenderness in the crockpot.
How do I store leftover Crockpot Pierogi Casserole with Kielbasa?
To keep your casserole fresh, allow it to cool completely before transferring it to an airtight container. It can be stored in the fridge for up to 3 days. Make sure to portion it out for easy reheating later, and always check for any signs of spoilage.
Can I freeze this casserole?
Very! For freezing, it’s best to tightly wrap the cooled casserole in plastic wrap and then place it in a freezer-safe container. This method helps prevent freezer burn. You can freeze it for up to 1 month, perfect for meal prep or those busy nights.
What if my pierogi are still hard after cooking?
If you find the pierogi are not tender, make sure the crockpot is covered tightly to retain moisture. If they still seem a bit firm, cover and continue cooking for an additional 30 minutes on low. You can always add a splash of water or broth to help steam them if needed!
Can I make this casserole healthier?
Absolutely! You can use low-sodium soup and cheese alternatives to reduce sodium content. Additionally, substituting with Greek yogurt in place of sour cream brings creaminess without the added fat. For a lighter version, consider loading it up with vegetables like spinach or bell peppers to boost nutrients without compromising on flavor.
Is this dish suitable for pets?
It’s best to avoid giving this casserole to pets, particularly because of the onions and certain seasonings. They can be harmful to dogs and cats. Always check with your vet for specific dietary restrictions if you want to share bits of your delicious Crockpot Pierogi Casserole with Kielbasa!

Crockpot Pierogi Casserole with Kielbasa for Cozy Nights
Ingredients
Equipment
Method
- Prepare the Crockpot by spraying it with non-stick cooking spray to ensure an easy release of the casserole later.
- Layer half of the frozen pierogi at the bottom of the crockpot, followed by half of the sliced kielbasa and half of the chopped onion.
- In a mixing bowl, combine the condensed cream of mushroom soup, sour cream, and melted butter; stir until well incorporated.
- Spread half of the creamy sauce mixture over the layered pierogi, kielbasa, and onion.
- Repeat the process by adding the remaining frozen pierogi, kielbasa, onion, and pouring the remaining creamy sauce over.
- Cover the crockpot with its lid and set it to cook on low for 4-5 hours.
- In the last 30 minutes of cooking, sprinkle the shredded cheddar cheese evenly over the top of the casserole.
- Once cooking is complete, serve the casserole warm and garnish each serving with chopped chives.

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