Pierogi Casserole with Kielbasa

Pierogi casserole with kielbasa is a hearty, comforting dish that combines the rich flavors of traditional pierogi with smoky kielbasa in a creamy, cheesy baked casserole. Inspired by Polish cuisine, this dish transforms the beloved pierogi—dumplings typically stuffed with potatoes and cheese—into an easy-to-make layered casserole that delivers all the flavor without the labor-intensive process of making individual dumplings.

This recipe is perfect for busy weeknights, family gatherings, or potlucks, as it comes together quickly and feeds a crowd. The creamy layers of mashed potatoes, cheese, and sour cream provide a luscious texture, while the savory kielbasa adds depth and a smoky kick. Topped with gooey melted cheese and crispy onions, this dish is the ultimate comfort food that will satisfy every craving.

Why You’ll Love This Recipe

• Classic Pierogi Flavors Without the Work – No need to roll out dough or shape dumplings; this casserole offers the same delicious taste in an easier format.
• Rich and Creamy Texture – Layers of mashed potatoes, sour cream, and cheese make every bite smooth and indulgent.
• Smoky and Savory – Kielbasa adds a perfect smoky contrast to the creamy layers, making the dish well-balanced and flavorful.
• Quick and Easy to Prepare – A simple layering technique and a short baking time make this a stress-free meal option.
• Feeds a Crowd – Ideal for family dinners, potlucks, or meal prepping.
• Customizable – Easily adjust ingredients to fit your preferences, adding more vegetables, different cheeses, or extra toppings.

Preparation Time and Servings

• Prep Time: 20 minutes
• Cook Time: 35 minutes
• Total Time: 55 minutes
• Yield: 8 servings
• Serving Size: 1 portion

Nutritional Information (per serving)

• Calories: 450
• Carbohydrates: 40g
• Protein: 18g
• Fat: 25g
• Fiber: 3g
• Sugar: 4g

Ingredients

For the Casserole:

• 12 frozen potato and cheese pierogi
• 1 lb (16 oz) kielbasa, sliced into rounds
• 1 medium onion, diced
• 2 cloves garlic, minced
• 2 tablespoons butter
• 1 cup sour cream
• 1 cup shredded cheddar cheese
• ½ cup shredded mozzarella cheese
• ½ teaspoon smoked paprika
• ½ teaspoon salt
• ½ teaspoon black pepper
• ½ teaspoon garlic powder
• ½ teaspoon onion powder

For the Topping:

• ½ cup crispy fried onions
• 2 tablespoons chopped fresh parsley (for garnish)
• ¼ cup cooked and crumbled bacon (optional)

Step-by-Step Instructions

1. Preheat and Prepare Ingredients

Preheat your oven to 375°F (190°C). Lightly grease a 9×13-inch baking dish with butter or cooking spray.

2. Cook the Kielbasa and Onions

In a large skillet over medium heat, melt the butter. Add the sliced kielbasa and cook for about 5-7 minutes until browned and slightly crispy. Remove from the pan and set aside. In the same skillet, add the diced onions and cook until they become soft and translucent, about 3 minutes. Add the minced garlic and cook for another minute.

3. Cook the Pierogi

While the kielbasa is cooking, bring a large pot of salted water to a boil. Cook the frozen pierogi according to the package instructions (typically about 5 minutes or until they float to the surface). Drain and set aside.

4. Mix the Creamy Layer

In a large bowl, mix together the sour cream, shredded cheddar cheese, smoked paprika, salt, pepper, garlic powder, and onion powder. This mixture will add a rich, creamy texture to the casserole.

5. Assemble the Casserole

Layer half of the cooked pierogi in the prepared baking dish. Spread half of the sour cream mixture over the pierogi, followed by half of the sautéed onions and garlic. Add half of the cooked kielbasa on top. Repeat the layers with the remaining pierogi, sour cream mixture, onions, and kielbasa.

6. Add Cheese and Toppings

Sprinkle the shredded mozzarella cheese evenly over the top of the casserole. For extra crunch and flavor, add the crispy fried onions and crumbled bacon (if using).

7. Bake the Casserole

Cover with foil and bake for 20 minutes. Remove the foil and bake for an additional 15 minutes, or until the cheese is melted and bubbly.

8. Garnish and Serve

Remove from the oven and let the casserole sit for 5 minutes. Sprinkle fresh parsley over the top before serving. Enjoy warm with a side of sour cream or hot sauce if desired.

Ingredient Background

• Frozen Pierogi – A convenient alternative to making homemade dumplings, providing the classic potato-and-cheese filling with ease.
• Kielbasa – A smoked Polish sausage that adds a rich, savory flavor to the casserole.
• Sour Cream – Adds tangy creaminess and helps bind the layers together.
• Cheddar and Mozzarella Cheese – The perfect combination of sharp and melty cheese for a gooey, delicious topping.
• Crispy Fried Onions – Provides a crunchy contrast to the creamy layers.

Technique Tips

• Brown the Kielbasa Well – Cooking the kielbasa until crispy enhances the smoky flavor.
• Use Room-Temperature Sour Cream – Cold sour cream can be difficult to spread evenly.
• Drain the Pierogi Well – Excess water can make the casserole soggy.
• Let It Rest Before Serving – This allows the layers to set, making it easier to serve.

Alternative Presentation Ideas

• Pierogi Skillet Bake – Cook everything in an oven-safe skillet for a rustic, one-pan meal.
• Mini Casserole Cups – Bake in muffin tins for individual portions, perfect for parties.
• Pierogi Bowl – Skip baking and serve the cooked pierogi and kielbasa with sour cream and toppings.

Additional Tips for Success

• Make It Extra Creamy – Add a splash of heavy cream to the sour cream mixture.
• Boost the Veggies – Add sautéed mushrooms, bell peppers, or spinach.
• Spice It Up – Add red pepper flakes or jalapeños for heat.

Recipe Variations

• Buffalo Pierogi Casserole – Mix in buffalo sauce and top with blue cheese.
• Loaded Pierogi Casserole – Add extra bacon, chives, and ranch seasoning.
• Vegetarian Version – Swap kielbasa for roasted mushrooms or smoked tofu.

Freezing and Storage

• Refrigerate – Store leftovers in an airtight container for up to 4 days.
• Freeze – Freeze unbaked casserole for up to 2 months; thaw overnight before baking.
• Reheat – Warm in the oven at 350°F (175°C) for 15 minutes.

Healthier Twist Ideas

• Use Turkey Kielbasa – Lower in fat but still flavorful.
• Reduce the Cheese – Cut back on cheese and use Greek yogurt instead of sour cream.
• Increase Fiber – Add peas, carrots, or spinach.

Serving Suggestions for Events

• Family Dinner Night – Serve with a fresh salad.
• Holiday Gatherings – Great as a side dish for Thanksgiving or Christmas.
• Potluck Favorite – Easy to transport and always a crowd-pleaser.

Special Equipment

• Large skillet
• 9×13-inch baking dish
• Mixing bowls

Frequently Asked Questions

1. Can I use homemade pierogi instead of frozen?

Yes! If you have homemade pierogi, they will work wonderfully in this casserole. Just be sure to boil and drain them before assembling the dish to prevent them from becoming too dry or overcooked. Homemade pierogi often have a softer texture compared to store-bought frozen ones, so be gentle when layering them in the casserole to keep them intact.

2. What can I use instead of kielbasa?

If you don’t have kielbasa or prefer a different protein, there are several great substitutes. Smoked sausage is the closest alternative, offering a similar smoky and savory flavor. Bratwurst, chorizo, or even andouille sausage can provide a unique twist. If you want to go with a leaner option, turkey or chicken sausage works well. For those who prefer ground meat, cooked and seasoned ground beef, pork, or even shredded chicken can be excellent substitutes.

3. Can I make this casserole ahead of time?

Yes! This casserole is a fantastic make-ahead meal. You can fully assemble it up to 24 hours in advance and store it covered in the refrigerator. When you’re ready to bake, simply place it in the oven and increase the baking time by about 5-10 minutes to ensure it heats through completely. This makes it perfect for busy weeknights or holiday gatherings where you want to save time on meal prep.

4. Can I make it gluten-free?

Absolutely! To make this dish gluten-free, be sure to use gluten-free pierogi, which are available in some grocery stores or can be made at home using gluten-free flour. Additionally, check that your kielbasa, sour cream, cheese, and any seasoning blends do not contain gluten. Gluten-free crispy onions or breadcrumbs can be used for topping instead of traditional fried onions.

5. What cheese works best for this dish?

The best cheeses for this casserole are those that melt well and complement the creamy, savory flavors. Cheddar cheese provides a sharp and rich taste, while mozzarella adds a stretchy, gooey texture. Gouda or Swiss cheese can enhance the dish with their nutty and slightly sweet undertones. If you love a little extra bite, consider adding a sprinkle of Parmesan on top for a salty, umami boost.

6. How can I make this less heavy?

If you want a lighter version of this casserole, consider using reduced-fat sour cream, light cream cheese, or Greek yogurt in place of regular sour cream. Turkey kielbasa is a great alternative to traditional pork kielbasa, as it has less fat but still delivers great flavor. Additionally, you can reduce the amount of cheese used or swap out some of the pierogi for extra vegetables like sautéed mushrooms, spinach, or bell peppers to cut down on calories while keeping the dish filling.

7. Can I add eggs for a breakfast version?

Yes! This casserole can easily be transformed into a delicious breakfast dish. Scramble 4-6 eggs and mix them with the sour cream and cheese mixture before layering everything together. You can also add breakfast sausage or crumbled bacon in place of the kielbasa. This breakfast variation is great for weekend brunches, offering a fun twist on classic breakfast flavors.

8. What’s the best way to reheat leftovers?

For the best results, reheat leftovers in a preheated oven at 350°F (175°C) for about 15-20 minutes, or until warmed through. Cover the casserole with foil to prevent the cheese from over-browning. If you’re in a hurry, you can reheat individual portions in the microwave, but be aware that the texture may become slightly softer. If reheating in the microwave, cover the dish with a damp paper towel and heat in 30-second intervals to avoid drying out the pierogi.

9. Can I freeze this casserole?

Yes, this casserole freezes well! If you want to freeze it before baking, assemble the dish in a freezer-safe container and wrap it tightly with plastic wrap and aluminum foil. It can be stored in the freezer for up to 2 months. When ready to bake, let it thaw in the refrigerator overnight before placing it in the oven. If baking directly from frozen, increase the cooking time by 20-30 minutes and cover with foil to prevent the top from burning.

10. What are some good side dishes to serve with pierogi casserole?

Since pierogi casserole is already rich and creamy, lighter side dishes work best to balance the meal. A fresh garden salad with a tangy vinaigrette can help cut through the heaviness. Steamed or roasted vegetables such as green beans, asparagus, or Brussels sprouts make excellent sides. For an extra Polish touch, serve the casserole with a side of pickled vegetables or sauerkraut, which provide a nice contrast to the creamy dish.

11. Can I make this in a slow cooker?

Yes! To make pierogi casserole in a slow cooker, layer the ingredients as you would in a baking dish. Cook on low for 3-4 hours or on high for 2 hours, until everything is heated through and the cheese is melted. This is a great option for potlucks or when you want to keep the casserole warm for serving over a longer period.

12. Can I add more vegetables to the casserole?

Definitely! If you’d like to make the dish a little healthier or add more texture, sautéed mushrooms, bell peppers, or spinach make excellent additions. Peas, shredded carrots, or even finely chopped broccoli can also be incorporated for extra nutrition. Just make sure to sauté or steam any vegetables before adding them to the casserole to prevent excess moisture.

13. What herbs and seasonings go well with this dish?

To enhance the flavor, consider adding fresh herbs like parsley, dill, or chives. Smoked paprika gives the dish a deeper smoky flavor, while garlic powder, onion powder, and black pepper add more depth. A small pinch of cayenne or red pepper flakes can provide a little heat if you enjoy a spicier dish.

14. Can I use different types of pierogi?

Yes! While potato and cheese pierogi are the most traditional for this recipe, you can experiment with other varieties. Sauerkraut and mushroom pierogi add a tangy and earthy depth, while meat-filled pierogi can make the dish even heartier. Just keep in mind that some pierogi flavors may alter the overall taste of the casserole, so choose flavors that complement the kielbasa and creamy sauce.

15. How do I make this dish extra crispy on top?

For a crunchier topping, mix together crispy fried onions, panko breadcrumbs, and a bit of melted butter, then sprinkle it over the casserole before baking. You can also add an extra layer of shredded cheese during the last 5 minutes of baking and broil the casserole for 2-3 minutes to get a golden, bubbly crust.

Conclusion

Pierogi casserole with kielbasa is the perfect comfort dish that brings together the rich flavors of Polish cuisine with the ease of a baked casserole. Whether you’re preparing it for a weeknight dinner, a holiday gathering, or a potluck, this dish is guaranteed to satisfy. Its creamy layers of cheesy pierogi, smoky kielbasa, and crispy toppings make it an irresistible meal that’s both indulgent and convenient.

With its easy preparation, customizable ingredients, and make-ahead potential, this casserole is a must-try for anyone who loves traditional pierogi flavors but wants a simpler way to enjoy them. Serve it with a fresh salad, a side of roasted vegetables, or a dollop of sour cream for the ultimate cozy meal. Try it today, and experience a new favorite in your comfort food rotation!

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