Food has always brought comfort into my life, especially recipes that are hearty, flavorful, and easy. The first time I tried my Crockpot Pierogi Casserole with Kielbasa, I knew it was worth sharing with everyone. It’s family-friendly, satisfies both kids and adults, and needs minimal effort since the magic happens right in your slow cooker. Over the years, I’ve perfected it, ensuring it’s as simple as possible, and today, I’m excited to share every detail with you! Whether it’s prep time, tips to make it even easier, or serving suggestions, I’ve got you covered.

Preparation and Cooking Time
Time is precious, and I understand you might want to plan your meals efficiently. For this recipe, here’s a breakdown of preparation and cooking time so you know exactly what to expect.
- Preparation Time: 10-15 minutes
- Cooking Time: 3-4 hours on low in the crockpot
- Total Time: About 4-4.5 hours
Most of the time is hands-off, which allows you to focus on other tasks or simply relax. A quick suggestion? Prep your ingredients ahead of time, so the assembly process is a breeze.
Essential Kitchen Tools for Easy Cooking
For this recipe, the right tools make all the difference. Luckily, you don’t need anything fancy. Here’s a list of must-have kitchen essentials to make cooking this dish as seamless as possible:
- Crockpot/Slow Cooker – The star of this recipe. I used a 6-quart crockpot, which had plenty of space for all the layers without overcrowding.
- Sharp Knife and Cutting Board – To slice the kielbasa evenly and chop any additional toppings or ingredients.
- Mixing Bowls – One or two bowls are perfect for prepping your cream sauce or mixing cheese.
- Measuring Cups and Spoons – For precise measurements of the sauce and seasonings.
- Tongs or Large Spoon – Useful for layering pierogies, kielbasa, and your sauce evenly in the crockpot.
Having these tools handy keeps everything organized and ensures the preparation is quick and easy.
Step-By-Step Guide to Making Crockpot Pierogi Casserole
Here’s where the fun begins! Follow this simple guide for a foolproof pierogi casserole.
Ingredients You’ll Need
Here’s a list of what you’ll need for this flavorful dish. These ingredients strike the right balance between creamy, smoky, and savory.
- 2 (12-oz) packages of pierogies (either frozen or refrigerated works)
- 1 lb kielbasa, sliced into bite-sized pieces
- 1 cup sour cream
- 1 (10.5-oz) can of cream of mushroom soup
- 1 cup shredded cheddar cheese (plus extra for garnish)
- 1 small onion, diced (optional, but adds more flavor)
- 1 tablespoon butter (for sautéing onions, if applicable)
- 1 teaspoon garlic powder
- Salt and black pepper to taste
- ¼ cup green onions or parsley, chopped (for garnish, optional)
1. Prep Your Kielbasa and Onion
Slice the kielbasa into bite-sized pieces. If you’re using onions, sauté them separately in a small skillet with a bit of butter for 5 minutes until they’re translucent and fragrant.
2. Mix the Sauce
In a mixing bowl, whisk together the sour cream, cream of mushroom soup, garlic powder, salt, and pepper. Stir in 1 cup of shredded cheddar cheese for added creaminess.
3. Layer Ingredients in the Crockpot
Grab your crockpot and start layering! Begin with a single layer of pierogies, followed by sliced kielbasa, onions, and a generous amount of creamy sauce. Repeat these layers until all the ingredients are used. I usually end with a final drizzle of sauce and extra cheese on top.
4. Cook on Low Heat
Set your slow cooker on low and cook for 3-4 hours. This slow cooking allows the flavors to meld beautifully, and the pierogies become tender while absorbing the sauce.

Tips for the Perfect Crockpot Pierogi Casserole
- Use High-Quality Kielbasa: The smoky, rich flavor of kielbasa is crucial for this dish. Opt for a trusted brand or consider a local butcher for the best results.
- Frozen vs. Refrigerated Pierogies: Either works well for this recipe. Frozen pierogies may need a slightly longer cook time, so keep that in mind.
- Cheese Options: Swap cheddar for mozzarella or Colby Jack if you prefer.
- Add More Veggies: You can add chopped bell peppers, peas, or even spinach to amp up the nutrition factor.
Serving Suggestions
Once the casserole is done, your kitchen will smell amazing! Here’s how I love to serve this dish for maximum enjoyment.
- Garnish with Green Onions or Parsley: A sprinkle of fresh herbs brightens the dish and adds color.
- Pair with a Simple Side Salad: A fresh, crisp salad balances the richness of the casserole.
- Serve Family-Style: Bring the crockpot to the table for a rustic, cozy presentation.
Why You’ll Love This Recipe
There are so many reasons this dish will become a staple in your household. First, it’s the ultimate comfort food with creamy textures, smoky kielbasa, and cheesy goodness. Second, it’s a time-saver. Whether you’re a busy parent, hosting a casual dinner, or simply craving something warm, this recipe has your back. Finally, it’s versatile. You can easily adjust the ingredients to suit your taste by adding more veggies, using gluten-free pierogies, or experimenting with different sauces.
Storage and Reheating Tips
Leftovers of this casserole are a gift! Here’s how to store and reheat them properly.
- Refrigeration: Store any leftovers in an airtight container in the fridge for up to 3 days.
- Freezing: If you have a lot left over, freeze single portions in freezer-safe containers for up to 2 months.
- Reheating: Warm individual portions in the microwave or oven. Add a splash of milk or cream to loosen the sauce if it’s become too thick.
Final Thoughts
This Crockpot Pierogi Casserole with Kielbasa has become one of my all-time favorite recipes. It’s so simple to make, yet it delivers big on flavor. Whether you’re a fan of slow-cooked meals or looking for something new to share with your family, this dish is perfect. Plus, with the helpful breakdown of timing, preparation tips, and serving options I’ve included, you’ll have zero stress in the kitchen. Try it out, and I promise it’ll become a new staple in your meal plan!
Crockpot Pierogi Casserole with Kielbasa
This Crockpot Pierogi Casserole with Kielbasa is the ultimate comfort food made easy. Creamy, cheesy, and packed with savory kielbasa and tender pierogies, it’s a no-fuss dinner that’s perfect for busy weeknights or cozy weekends.
- 2 16 oz boxes frozen pierogies (potato & cheese or your favorite)
- 1 14 oz kielbasa sausage, sliced into rounds
- 1 cup shredded cheddar cheese
- 1 10.5 oz can cream of mushroom soup
- 1 8 oz block cream cheese, cubed
- ½ cup sour cream
- 1 small onion (diced)
- ½ teaspoon garlic powder
- Salt and black pepper (to taste)
- Chopped parsley or green onions (optional, for garnish)
✔ Layer the Ingredients
- Spray your crockpot with nonstick cooking spray. Layer half of the frozen pierogies at the bottom, followed by half of the kielbasa slices and diced onions.
✔ Mix the Sauce
- In a medium bowl, whisk together the cream of mushroom soup, sour cream, garlic powder, and cubed cream cheese until combined.
✔ Assemble the Casserole
- Pour half of the creamy sauce over the first layer. Repeat with the remaining pierogies, kielbasa, onions, and sauce. Sprinkle cheddar cheese over the top.
✔ Cook
- Cover and cook on LOW for 4 hours or HIGH for 2–2.5 hours, until everything is heated through and bubbly.
✔ Serve & Garnish
- Stir gently to combine before serving. Garnish with fresh parsley or green onions if desired.
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Variations: Try swapping kielbasa with smoked sausage or adding sautéed mushrooms for extra flavor.
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Make Ahead: Assemble everything in the crock the night before and refrigerate. Just pop it in and cook when ready.
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Storage: Leftovers keep well in the fridge for 3–4 days and can be reheated in the microwave.