Home Slow Cooker Crockpot Pierogi Casserole with Kielbasa

Crockpot Pierogi Casserole with Kielbasa

Eva Mendes18

Crockpot Pierogi Casserole with Kielbasa served in a bowl, showcasing creamy layers and flavors.

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Crockpot Pierogi Casserole with Kielbasa is a cozy, cheesy, and comforting slow cooker dinner made with frozen pierogies, sliced kielbasa, onion, creamy soup, sour cream, and shredded cheese. It is rich, hearty, and perfect for busy nights when you want an easy meal with very little prep.

The frozen pierogies cook gently in the slow cooker with smoky kielbasa and a creamy sauce until everything is tender, warm, and flavorful. The cheese melts into the casserole, creating a simple comfort food dish that feels filling and satisfying.

Why You’ll Love This Crockpot Pierogi Casserole with Kielbasa

Very easy to prepare: This recipe uses frozen pierogies, sliced kielbasa, and a creamy sauce, so the prep stays simple.
Perfect comfort food: The combination of potatoes, cheese, smoked sausage, sour cream, and cream soup makes the casserole rich and cozy.
Slow cooker friendly: The crockpot does most of the work, making this a helpful dinner for busy weekdays.
No thawing needed: The pierogies can go into the slow cooker straight from frozen.
Family-friendly: Mild kielbasa, creamy sauce, and cheesy pierogies make this dish easy to enjoy.
Great leftovers: Leftovers reheat well with a splash of milk or broth to bring back the creamy texture.

What Makes This Recipe Special

This recipe is special because it turns simple freezer and pantry ingredients into a warm, filling casserole. The pierogies become soft and tender while the kielbasa adds smoky flavor throughout the dish.

The creamy sauce keeps everything moist, while shredded cheese melts into the layers. It is the kind of slow cooker meal that feels homemade and comforting without needing a long cooking process on the stove.

Ingredients You’ll Need

Main Ingredients

Frozen pierogies: Use 24 ounces of frozen potato and cheddar pierogies, or your favorite flavor. No need to thaw; use them straight from frozen.
Kielbasa: Use 1 pound of kielbasa, sliced into rounds. Beef, pork, turkey, or chicken sausage can also work.
Onion: One medium diced onion adds flavor and mild sweetness. Yellow or sweet onion is recommended.
Cream soup: Use 16 ounces of cream of mushroom or cream of chicken soup. This creates the creamy base of the casserole.
Sour cream: Use 1 cup sour cream for richness and tang. Dairy-free sour cream can be used if needed.
Shredded cheese: Use 2 cups shredded cheddar or mozzarella. Extra cheese can be added near the end for a cheesier finish.

Best Tips Before You Start

Spray the slow cooker with nonstick spray before adding the ingredients. This helps prevent the creamy sauce and cheese from sticking to the sides.

Use the pierogies straight from frozen. Thawing is not needed and can make them too soft before cooking.

Check the casserole near the end of cooking. Slow cookers can vary, and pierogies can become too soft if cooked much longer than needed.

If the sauce becomes too thick after cooking, stir in a small splash of milk, broth, or water before serving.

How to Make Crockpot Pierogi Casserole with Kielbasa

Step 1: Prepare the Slow Cooker

Spray the inside of the slow cooker with nonstick spray. This makes cleanup easier and helps prevent sticking.

Step 2: Add the First Layer

Layer half of the frozen pierogies in the bottom of the slow cooker.

Step 3: Add Kielbasa and Onion

Add half of the sliced kielbasa and half of the diced onion over the pierogies.

Step 4: Add the Creamy Sauce

Spoon half of the cream soup and half of the sour cream over the layer. Spread gently so the sauce reaches the pierogies.

Step 5: Add Cheese

Sprinkle half of the shredded cheese over the creamy layer.

Step 6: Repeat the Layers

Repeat the layers with the remaining pierogies, kielbasa, onion, cream soup, sour cream, and cheese.

Step 7: Slow Cook

Cover and cook on low for 3 to 4 hours or on high for 1 1/2 to 2 1/2 hours. Check occasionally near the end to prevent overcooking.

Step 8: Adjust Seasoning

Taste before serving and adjust the seasoning if needed. Kielbasa and cheese can already be salty, so season carefully.

Step 9: Serve

Serve warm directly from the slow cooker. Add extra shredded cheese, green onions, parsley, or black pepper on top if desired.

Recipe Tips

Use frozen pierogies straight from the bag.
Slice the kielbasa evenly so it warms through at the same rate.
Use a slow cooker liner or nonstick spray for easier cleanup.
Do not overcook the casserole, or the pierogies may become too soft.
Add extra cheese near the end if you want a more melted topping.
Stir gently before serving so the pierogies do not break apart.
Add a splash of milk or broth when reheating leftovers.

Substitutions and Variations

Chicken Kielbasa Version

Use chicken kielbasa for a lighter version. It still adds smoky flavor while keeping the dish a little less rich.

Turkey Kielbasa Version

Turkey kielbasa works well if you want a leaner option. Slice it into rounds and use it the same way as regular kielbasa.

Cheddar Pierogi Version

Potato and cheddar pierogies are a classic choice for this casserole. They pair well with the creamy sauce and smoked sausage.

Extra Cheesy Version

Add extra shredded cheddar during the final 15 to 20 minutes of cooking. Cover again until the cheese melts.

Spicy Kielbasa Casserole

Use spicy sausage or add a pinch of red pepper flakes for gentle heat. Start with a small amount and adjust to taste.

Onion and Pepper Version

Add diced bell pepper with the onion for extra flavor and color. Red or yellow bell peppers work especially well.

Make-Ahead and Storage

This casserole is easiest when assembled right before cooking, but you can slice the kielbasa and dice the onion ahead of time.

Store leftovers in an airtight container in the refrigerator for 3 to 4 days.

To reheat, warm gently in the microwave or on the stovetop. Add a splash of milk, broth, or water if the sauce has thickened.

This casserole can also be frozen, but the pierogies may soften slightly after thawing. For best results, reheat gently and add a little liquid to refresh the sauce.

What to Serve with Crockpot Pierogi Casserole with Kielbasa

Serve this casserole with a green salad, cucumber salad, steamed green beans, roasted broccoli, coleslaw, or sautéed cabbage.

It also pairs well with dinner rolls, roasted carrots, peas, pickles, or a simple tomato salad.

For a cozy dinner, serve it with iced tea, lemonade, sparkling water, or a light dessert like banana pudding cups or cream cheese pie.

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Frequently Asked Questions

Do I need to thaw the pierogies first?

No. Use the pierogies straight from frozen. Thawing can make them too soft before they cook.

What kind of kielbasa should I use?

You can use beef, pork, turkey, or chicken kielbasa. Choose the type you like best because it adds a lot of flavor to the casserole.

Can I use cream of chicken soup instead of cream of mushroom?

Yes. Cream of chicken soup works well and gives the casserole a mild, creamy flavor. Cream of mushroom gives a slightly earthier taste.

Can I add more cheese?

Yes. Add extra cheddar or mozzarella near the end of cooking. Cover the slow cooker until the cheese melts.

How do I keep the pierogies from getting mushy?

Avoid overcooking and check the casserole near the end of the cook time. Cook just until the pierogies are tender and heated through.

How do I reheat leftovers?

Reheat gently in the microwave or on the stovetop. Add a splash of milk, broth, or water if the sauce is too thick.

This Crockpot Pierogi Casserole with Kielbasa is creamy, cheesy, smoky, and easy to make with frozen pierogies, sliced kielbasa, onion, cream soup, sour cream, and shredded cheese. It is a simple slow cooker comfort food dinner that works well for busy nights and family meals.

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