Name: Baked Kielbasa Pierogi Casserole Recipe
Prep time: 10 min
Cook time: 40 min
Total time: 50 min
Cuisine: American
Ingredients: 14 ounces sliced kielbasa sausage, ¼-inch thick; 32 ounces frozen pierogies; 1 (8-ounce) block softened cream cheese; ½ cup sour cream; ½ cup chicken broth; 1 teaspoon onion powder; 1 teaspoon garlic powder; ½ teaspoon salt; ½ teaspoon pepper; 1 cup shredded cheddar cheese, divided; 1 cup mozzarella cheese, divided; Sliced green onions for garnish

There’s something incredibly comforting about a good, hearty casserole that hits all the right notes—melty cheese, savory sausage, and those pillowy pierogies. This Baked Kielbasa Pierogi Casserole Recipe is exactly that, and it’s become one of my go-to dishes when I want a warm, satisfying meal that everyone loves.

The dish shows a white baking pan filled with a layered casserole. The bottom layer is a creamy sauce mixed with slices of browned sausage. Above that, there are overlapping slices of thin cooked potatoes, covered generously with melted yellow and white cheese. The cheese has a smooth, slightly browned texture and is dotted with chopped green onions on top. A wooden spoon is digging into the casserole, revealing the layers inside. The pan sits on a white marbled surface with some scattered green onion pieces around. Photo taken with an iphone --ar 2:3 --v 7

Jump to:

Why You'll Love This Recipe
Ingredients & Why They Work
Make It Your Way
Step-by-Step: How I Make Baked Kielbasa Pierogi Casserole Recipe
Top Tip
How to Serve Baked Kielbasa Pierogi Casserole Recipe
Make Ahead and Storage
Frequently Asked Questions:
Final Thoughts
Baked Kielbasa Pierogi Casserole Recipe

Why You'll Love This Recipe

What makes this casserole stand out for me is how effortlessly it comes together while delivering big flavors and a luscious, creamy texture. It’s perfect for busy weeknights or even casual weekend gatherings when you want to impress without the fuss.

Easy assembly: Tossing everything in a baking dish saves you time and cleanup.
Comfort food vibes: The creamy cheese sauce with kielbasa and pierogies is soul-warming.
Customizable: You can swap cheeses, add veggies, or tailor the seasoning to your taste.
Great for leftovers: It reheats wonderfully and tastes just as delicious the next day.

A white baking dish filled with a cheesy layered potato casserole is shown from above on a white marbled surface. There are three main layers: thin golden-yellow potato slices arranged close together at the bottom, a middle layer of browned sausage slices in dark reddish-brown tones scattered evenly, and a top layer of melted cheese in white and deep yellow swirls, with some melted parts slightly browned at the edges. The whole dish is sprinkled with finely chopped bright green scallions. A wooden spatula is scooping out a portion near the bottom right, showing the layers clearly. Photo taken with an iphone --ar 2:3 --v 7

Ingredients & Why They Work

Each ingredient in the Baked Kielbasa Pierogi Casserole Recipe plays its part to create that perfect balance of creaminess and savory goodness. Picking quality components will seriously elevate the final dish.

Flat lay of sliced kielbasa sausage arranged in a neat row, a small pile of uncooked pierogies with smooth dough, a block of cream cheese with a slight sheen, a small white bowl filled with thick sour cream, a small white bowl holding clear chicken broth, scattered loose onion powder and garlic powder on the surface, a small white bowl of coarse salt, a small white bowl of cracked black peppercorns, a pile of shredded sharp cheddar cheese, a pile of shredded mozzarella cheese, and a few fresh sliced green onions with bright green tops and white bases, all placed on simple white ceramic bowls or directly on the surface, perfectly symmetrical and balanced, placed on a clean white marble surface, soft natural light, photo taken with an iPhone, professional food photography style, fresh ingredients, white ceramic bowls, no bottles, no duplicates, no utensils, no packaging --ar 2:3 --v 7 --p m7354615311229779997

Kielbasa sausage: Its smoky, garlicky flavor adds a meaty richness that pairs beautifully with pierogies.
Frozen pierogies: These are the stars of the dish—dumplings stuffed with potatoes or cheese, they're sturdy enough to bake and soak up all those flavors.
Cream cheese: Softens into a luxuriously creamy sauce when mixed with sour cream and broth.
Sour cream: Adds tang and smoothness, balancing the richness.
Chicken broth: Thins out the sauce just enough to coat everything perfectly without being heavy.
Onion and garlic powder: Bring warmth and depth—these little flavor boosters can’t be skipped.
Cheddar and mozzarella cheeses: Cheddar gives sharpness, while mozzarella melts into gooey goodness on top.
Green onions: Used as garnish, they add a fresh, slightly pungent crunch that brightens the casserole.

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Note: You'll find the complete list of ingredients, along with their exact measurements, in the printable recipe card at the bottom of this post.

Make It Your Way

I love mixing things up depending on what I have on hand. Sometimes I sneak in sautéed mushrooms or caramelized onions before baking, which adds even more depth to the casserole. You’ll find it’s a flexible recipe that invites your creativity.

Vegetable add-ins: Roasted bell peppers or spinach make this dish feel a bit lighter and add color—and you can hide greens in here for picky eaters.
Spice it up: For a little kick, sprinkle some smoked paprika or cayenne into the cheese sauce before baking.
Dairy-free version: Use dairy-free cream cheese and cheese alternatives to make this recipe suitable for lactose intolerant friends.
Extra crispy: After baking, pop the casserole under the broiler for a couple of minutes for an irresistible bubbly, golden crust.

Step-by-Step: How I Make Baked Kielbasa Pierogi Casserole Recipe

Step 1: Ready Your Baking Dish and Ingredients

Start by preheating your oven to 375°F and spraying a 9×13-inch baking dish with non-stick spray. This prevents any sticky mess later and helps with cleanup—trust me, it makes a difference! Then, slice your kielbasa into about ¼-inch rounds and toss those along with the frozen pierogies into your dish. There's no need to thaw the pierogies first—this saves time and works wonderfully.

Step 2: Whip Up the Creamy Cheese Sauce

Grab a mixing bowl and whip the softened cream cheese with sour cream using a hand mixer or whisk until smooth and creamy. Next, pour in chicken broth, then sprinkle in onion powder, garlic powder, salt, and pepper. Finally, mix in half of your shredded cheddar and mozzarella cheeses. The sauce should be silky and well combined, ready to coat every pierogi and sausage slice.

Step 3: Combine and Layer the Casserole

Pour the cheese sauce over the pierogies and kielbasa in the dish. Use a spatula or spoon to gently toss everything so the sauce covers all the ingredients without breaking the pierogies apart. Even layering ensures great flavor distribution. Then sprinkle the remaining cheddar and mozzarella cheeses on top—this will create that irresistible golden crust.

Step 4: Bake Until Bubbly and Golden

Cover the casserole with foil—this keeps moisture in so the pierogies stay tender—and bake for 30 minutes. Then, remove the foil and bake uncovered for another 10 minutes until you see those bubbly cheese edges and a lightly golden top. A perfectly baked casserole will smell amazing and be nice and bubbly around the sides.

Step 5: Rest and Garnish

Once out of the oven, let it cool for a few minutes—this helps the sauce settle and makes serving easier. Finish with a sprinkle of thinly sliced green onions. These add a fresh pop of color and a gentle bite that’s just right. Then dive in and enjoy!

Top Tip

Over the years cooking this Baked Kielbasa Pierogi Casserole Recipe, I learned a few key tricks that really elevate the results and make the process smoother:

Don’t overmix the pierogies: When stirring the sauce in, be gentle to avoid breaking the delicate pierogi dough.
Choose the right cheese: Using a combo of sharp cheddar and mild mozzarella gives the perfect balance of flavor and meltability.
Let it rest before serving: The casserole firms up while cooling, making it easier to scoop out perfect portions without collapsing.
Use foil for the first bake: This prevents drying out and helps those frozen pierogies cook evenly and stay tender.

How to Serve Baked Kielbasa Pierogi Casserole Recipe

kielbasa pierogi casserole - Serving Suggestion

Garnishes

I usually top the casserole with freshly sliced green onions—they give such a nice bright contrast to the rich, cheesy casserole. Sometimes I add a dollop of sour cream on the side for an extra creamy touch. If you’re feeling adventurous, a sprinkle of crispy fried onions adds fantastic crunch and flavor.

Side Dishes

What pairs well with this rich casserole? A crisp green salad with a tangy vinaigrette complements it beautifully. I also like roasted or steamed green beans to add that fresh vegetable balance. For heartier meals, sautéed cabbage or even a simple cucumber salad with dill keeps the meal feeling fresh and not too heavy.

Creative Ways to Present

For special occasions, I’ve layered the casserole in individual ramekins for a charming personal touch—perfect for potlucks or family dinners. You can also sprinkle everything with a handful of chopped fresh parsley or chives for a burst of color. Pairing it with a rustic loaf of crusty bread turns this into a full, hearty feast.

Make Ahead and Storage

Storing Leftovers

I usually store leftovers in an airtight container in the fridge. This casserole keeps really well for 3 to 4 days and reheats nicely without drying out, which is something I appreciate after a busy week.

Freezing

If I’m making this ahead for a crowd, I sometimes freeze it after assembling but before baking. Just cover tightly with foil and a lid or plastic wrap, then thaw overnight in the fridge before baking as directed. It freezes beautifully without losing texture or flavor.

Reheating

For leftovers, I reheat in a 350°F oven covered with foil for about 15-20 minutes to warm through without drying out. You can uncover the last few minutes to refresh the crispy cheese topping. Microwaving works too if you’re in a rush, but the oven gives better texture.

Frequently Asked Questions:

Can I use fresh pierogies instead of frozen?

Absolutely! Fresh pierogies will work just as well and might even shorten the baking time slightly since they’re not frozen. Just keep an eye on them to avoid overcooking.

What type of kielbasa is best for this casserole?

I recommend using your favorite smoked kielbasa—whether it’s pork or a beef blend. Smoked kielbasa offers that deep, savory flavor that complements the creamy sauce. Avoid fresh or uncooked sausage since this recipe calls for baking, not cooking raw sausage thoroughly.

Can I make this casserole gluten-free?

Definitely! Just make sure to use gluten-free pierogies (many brands offer gluten-free versions nowadays) and check that your chicken broth and sausages don’t contain any gluten additives. The rest of the ingredients should be naturally gluten-free.

How can I prevent the pierogies from sticking together?

Tossing the frozen pierogies evenly with the cheese sauce helps them stay separate, but if you’re worried, you can lightly spray the baking dish before adding them. Also, stirring gently after adding the sauce is key—not too vigorous to avoid tearing the pierogi skins.

Final Thoughts

This Baked Kielbasa Pierogi Casserole Recipe feels like a warm hug on a plate, packed with nostalgic comfort and rich, creamy goodness. I love sharing it with friends because it’s so approachable, yet impressive enough to put on the table when guests come over. I can’t wait for you to try it and make it your own—it might just become your new favorite casserole too!