This cozy crockpot pierogi casserole mixes tender pierogi and tasty kielbasa for a warm dish that’s perfect for dinner. Plus, it cooks itself while you relax!
Who knew dinner could be this easy? I love just throwing everything in the crockpot and letting it bubble away. It’s like a hug in a bowl! After eating, I always wish I had leftovers. 😊
Key Ingredients & Substitutions
Pierogi: Frozen potato and cheese pierogi are a staple here. If you can’t find them, feel free to use mushroom or sauerkraut pierogi for a twist. Homemade pierogi can also work, but they may need more cooking time.
Kielbasa: Kielbasa adds rich flavor, but any smoked sausage will do! You could also use turkey kielbasa for a lighter version or even veggie sausage if you want a meatless dish.
Onions: I recommend yellow onions for their sweet flavor. If you’re not a fan, you can skip them or use shallots for a milder taste.
Cheese: Cheddar is classic in this recipe. Monterey Jack, gouda, or even pepper jack can be great alternatives for something different.
Sour Cream: If you’d like a lighter option, Greek yogurt can work nicely. For dairy-free, opt for a plant-based sour cream alternative.
How Do I Achieve the Perfect Layering in My Casserole?
Layering creates a great texture in the casserole. Start by lining the bottom with frozen pierogi directly; they soften and absorb flavors beautifully. Alternate layers of kielbasa, onions, and cheese for an even melt. Be sure to finish with cheese on top. This locks in moisture and forms a delicious crust. Don’t rush it; let the crockpot do the work for really tender pierogi and savory flavors!

Easy Crockpot Pierogi Casserole with Kielbasa
Ingredients You’ll Need:
For the Casserole:
- 1 (24 oz) package frozen potato and cheese pierogi
- 1 lb kielbasa sausage, sliced into 1/2-inch pieces
- 1 medium onion, thinly sliced
- 2 cups shredded cheddar cheese
- 1 cup sour cream
- 1 cup heavy cream or half-and-half
- 2 tablespoons butter, melted
- 2 cloves garlic, minced
- Salt and pepper, to taste
- Fresh parsley or chives, chopped (optional, for garnish)
How Much Time Will You Need?
This delightful dish takes about 15 minutes to prep, with a cooking time of 4 to 5 hours in the crockpot. Perfect for a busy day when you want a yummy home-cooked meal with minimal effort!
Step-by-Step Instructions:
1. Prepare the Crockpot:
Start by spraying the inside of a 6-quart crockpot with non-stick cooking spray. This helps ensure your casserole comes out easily when it’s done.
2. Layer the Ingredients:
Begin by laying half of the frozen pierogi in the bottom of your crockpot. Then, sprinkle half of the sliced kielbasa over the pierogi. Next, add half of the sliced onions and the minced garlic evenly over the kielbasa. To finish this layer, sprinkle 1 cup of shredded cheddar cheese on top.
3. Repeat the Layering:
Now it’s time to repeat those layers! Add the remaining pierogi, then the rest of the kielbasa, onions, garlic, and top it all with the remaining cheddar cheese.
4. Mix the Creamy Sauce:
In a small bowl, whisk together the sour cream, heavy cream (or half-and-half), melted butter, salt, and pepper. Ensure it’s well combined and creamy.
5. Assemble Everything:
Pour the creamy mixture evenly over all the ingredients layered in the crockpot. Make sure everything is well covered.
6. Cook:
Cover the crockpot and cook on low for 4 to 5 hours, or until the pierogi are tender and the casserole is heated through. This is the moment you can leave and let the magic happen!
7. Serve and Garnish:
Once done, sprinkle with fresh parsley or chives if you like, and serve warm. Enjoy your comforting crockpot pierogi casserole!

Frequently Asked Questions (FAQ)
Can I Use Fresh Pierogi Instead of Frozen?
Absolutely! If you’re using fresh pierogi, reduce the cooking time to about 2-3 hours on low, as they won’t take as long to cook through compared to frozen ones.
What If I Don’t Have Kielbasa?
No worries! You can substitute kielbasa with any smoked sausage, chicken sausage, or even turkey kielbasa. For a vegetarian option, try a plant-based sausage or omit the meat altogether.
Can I Make This Dish Ahead of Time?
Yes! You can assemble the casserole the night before and store it in the fridge. Just allow it to come to room temperature before cooking, and adjust the cook time a bit if needed.
How Do I Store Leftovers?
Store any leftovers in an airtight container in the refrigerator for up to 3 days. To reheat, simply microwave or warm it gently on the stovetop, adding a splash of cream if needed for moisture.


