Savory Pierogi Casserole with Kielbasa

There is something deeply comforting about a meal that comes together in one dish, bubbling away in the oven and filling the kitchen with a warm, savory aroma. For me, that feeling is tied to family gatherings and the kind of food that requires no fuss, just a big spoon and an empty plate. This savory pierogi casserole with kielbasa is exactly that kind of meal. It takes the beloved flavors of traditional pierogi—the tender dough, the creamy potato filling—and transforms them into a simple, layered bake that is perfect for a busy Tuesday or a relaxed weekend supper. It is the ultimate comfort food dinner, and it could not be easier to make.

If you love the combination of sausage and potatoes, you might also enjoy our One-Pot Polish Sausage Sauerkraut Potatoes, which offers a similarly hearty and satisfying meal with minimal cleanup.

Savory Pierogi Casserole with Kielbasa Ingredients

Savory pierogi casserole with kielbasa starts with a few simple components that create a rich and satisfying dish. Using frozen pierogi is the key shortcut that makes this recipe so accessible for any night of the week.

• 1 (16-ounce) package frozen potato and cheese pierogi
• 1 pound kielbasa sausage, sliced into 1/2-inch rounds
• 1 medium yellow onion, thinly sliced
• 1 cup sour cream
• 1 (10.5 ounce) can condensed cream of mushroom soup
• 1/2 cup whole milk
• 2 cups shredded cheddar cheese, divided
• 2 tablespoons unsalted butter
• 1 teaspoon garlic powder
• 1/2 teaspoon black pepper
• Fresh chopped parsley or chives for garnish (optional)

Smart Substitutions:

• Pierogi: Feel free to use sauerkraut or mushroom-filled pierogi for a different flavor profile.
• Kielbasa: Smoked sausage, turkey kielbasa, or even a spicy andouille can be used.
• Soup: Cream of onion or cream of celery soup are excellent alternatives.
• Cheese: Swap the cheddar for Monterey Jack, Gouda, or a Colby Jack blend.

Recipe Timing

• Prep Time: 15 minutes
• Cook Time: 50 minutes
• Total Time: 1 hour 5 minutes

This casserole comes together about 30% faster than making traditional pierogi from scratch, giving you all the classic flavor with a fraction of the effort.

Step-by-Step Instructions for Your Pierogi Casserole

Follow these simple steps for a perfectly baked, bubbly, and golden casserole every single time.

1. 
   

   Preheat and Sauté: Begin by preheating your oven to 375°F (190°C). In a large skillet over medium heat, melt the butter. Add the sliced kielbasa and onion, cooking for 6-8 minutes until the onion is softened and the kielbasa has some nice color. This step builds a foundational flavor that will permeate the entire dish.

   
   
2. 
   

   Create the Creamy Sauce: In a large mixing bowl, whisk together the sour cream, condensed soup, milk, 1 1/2 cups of the cheddar cheese, garlic powder, and black pepper. Whisk until the mixture is smooth and well-combined.

   
   
3. 
   

   Assemble the Layers: Spread the frozen pierogi in a single layer in a 9×13 inch baking dish. There is no need to thaw them. Scatter the cooked kielbasa and onion mixture evenly over the top of the pierogi. Pour the creamy cheese sauce over everything, using a spatula to spread it into an even layer and ensure the pierogi are well-coated.

   
   
4. 
   

   Bake to Perfection: Sprinkle the remaining 1/2 cup of cheddar cheese over the top. Cover the baking dish tightly with aluminum foil and bake for 30 minutes. This initial covered baking time is crucial for steaming the frozen pierogi until they are tender. Then, remove the foil and bake for another 15-20 minutes, or until the casserole is bubbly and the top is beautifully golden brown.

   
   

For another fantastic casserole that the whole family will love, try our Simple and Delicious Tater Tot Casserole Recipe.

Nutritional Snapshot

A single serving of this casserole is hearty and provides a good balance of macronutrients. Please note, this is an approximation and can vary based on specific ingredients used.

• Calories: ~520 kcal
• Protein: 22g
• Carbohydrates: 35g
• Fat: 32g

The dish offers a good source of protein from the kielbasa and cheese, and the potatoes in the pierogi provide energy-sustaining complex carbohydrates.

Equipment You Will Need

You do not need any fancy tools for this recipe, just a few kitchen basics.

• 9×13 inch Baking Dish
• Large Skillet
• Large Mixing Bowl
• Whisk
• Measuring Cups and Spoons

Why You Will Love This Savory Pierogi Casserole

This recipe is a guaranteed winner for so many reasons. It turns a package of frozen pierogi into a complete, company-worthy meal with very little active effort. The creamy, cheesy sauce is irresistibly good, and the smoky kielbasa makes it feel incredibly substantial. It is the kind of meal that comforts and satisfies in every single bite.

Healthier Alternatives for Your Casserole

If you are looking for a lighter version of this comfort food classic, a few simple swaps can make a big difference.

• Lighter Dairy: Use low-fat sour cream, reduced-fat cream of mushroom soup, and skim milk in the sauce.
• Leaner Protein: Opt for a turkey or chicken kielbasa to reduce the overall fat content.
• Boost Veggies: Stir in a few handfuls of fresh spinach or some sautéed sliced mushrooms with the onions to add extra nutrients and fiber.
• Reduced Sodium: Look for a low-sodium kielbasa and cream of mushroom soup to better control the salt level.

Perfect Serving Suggestions

This casserole is a full meal on its own, but a simple side can create a perfectly balanced dinner.

• For a Fresh Contrast: A crisp green salad with a tangy vinaigrette is the perfect counterpoint to the rich, creamy casserole.
• Classic Comfort Sides: Steamed green beans, roasted broccoli, or garlicky sautéed kale are all wonderful choices.
• With Bread: A slice of crusty rye or sourdough bread is ideal for mopping up every last bit of the delicious sauce.

If you are a fan of meals that combine sausage and potatoes in a soupy, comforting form, our Sausage Potato Soup is a must-try for a cozy night in.

Common Mistakes to Avoid

Even an easy recipe can have its pitfalls. Here is how to avoid them for the best possible outcome.

• Thawing the Pierogi: Do not thaw the pierogi before assembling the casserole. Using them frozen prevents them from becoming mushy and helps them hold their shape during baking.
• Skipping the Foil: Baking covered for the first 30 minutes is non-negotiable. This creates a steamy environment that cooks the pierogi through without drying them out.
• Overbaking: Keep a close eye on the casserole during the final uncovered bake. You are looking for bubbly sauce and a golden top, not a dark brown, overcooked surface.

Storing and Reheating Your Leftovers

This casserole stores and reheats beautifully, making it a fantastic option for meal prep.

• Refrigeration: Allow the casserole to cool completely, then transfer it to an airtight container. It will keep in the refrigerator for 3 to 4 days.
• Freezing: Assemble the casserole but do not bake it. Wrap the entire dish tightly in both plastic wrap and foil. It can be frozen for up to 3 months. To bake from frozen, remove the plastic, cover with foil, and bake at 375°F (190°C) for 60-75 minutes, removing the foil for the last 15 minutes.
• Reheating: Reheat individual portions in the microwave. For larger portions, reheat in a 350°F (175°C) oven, covered with foil, for about 20 minutes or until warmed through.

A Final Word on This Comforting Casserole

This savory pierogi casserole with kielbasa is more than just a recipe; it is a solution for those nights when you need a hearty, delicious dinner without a lot of work. It brings the cozy, familiar flavors of a classic dish into a simple, modern format that everyone can enjoy. I hope it becomes a regular in your dinner rotation, just as it has in mine.

If you enjoy the convenience of pasta-based casseroles, you will love our Crockpot Ravioli Lasagna for another set-it-and-forget-it meal.

I would love to hear how your casserole turned out. Let me know in the comments, and don’t forget to share your creations with us on Pinterest by tagging @Harmonymeal. Happy cooking

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