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 nothing quite like a cozy casserole to bring everyone together, and this Baked Kielbasa Pierogi Casserole Recipe is pure comfort food at its finest. Creamy, cheesy, and packed with savory kielbasa and those pillowy pierogies—trust me, it’s a total crowd-pleaser.

A white baking dish filled with a layered casserole showing several layers of round, creamy white potato slices mixed with browned sausage rounds scattered throughout. The top is covered with melted yellow and white shredded cheese and sprinkled with finely chopped green onions. Some parts of the edges are browned from baking. A dark wooden spoon rests inside the dish lifting some of the casserole from the corner. The dish is placed on a white marbled surface with a small bowl of green onions nearby. 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

I discovered this casserole on a chilly weekend when I wanted something hearty but easy enough to whip up on a whim. What really won me over is how the flavors blend without much fuss, creating a layered dish that feels special but won’t keep you in the kitchen all day.

Simple layering: You just toss kielbasa, frozen pierogies, and a creamy cheese sauce together for foolproof comfort food.
Rich and cheesy: The mix of cheddar and mozzarella keeps the casserole gooey without being overwhelming.
Perfect for weeknights or gatherings: Everyone’s happy around the table, and leftovers reheat beautifully.
Customizable: Easy to add your favorite veggies or swap in different cheese blends to make it your own.

The dish is a layered casserole in a white baking dish showing a top layer of melted yellow and white cheese, sprinkled with green chopped scallions. Under the cheese, there are thin slices of browned sausage visible, mixed among layers of round, soft-looking white potato slices with a creamy texture. The edges of the dish show some browned, slightly crispy baked cheese and sauce. A wooden spatula is lifting a portion, revealing thick layers of potatoes, sausage, cheese, and sauce stacked inside. The background is a white marbled surface with a small bowl of green salad on the side. Photo taken with an iphone --ar 2:3 --v 7

Ingredients & Why They Work

This recipe combines classic hearty elements with a luscious creamy sauce that brings it all together. Here’s why each ingredient plays a starring role in the Baked Kielbasa Pierogi Casserole Recipe:

Flat lay of sliced kielbasa sausage rounds arranged neatly, several uncooked pierogies with delicate crimped edges, a block of cream cheese with a smooth surface, a small white bowl filled with sour cream, a small white bowl containing clear chicken broth, a small white bowl of fine white onion powder, a small white bowl of pale garlic powder, a small white bowl of fine salt crystals, a small white bowl of cracked black pepper, a small pile of shredded sharp cheddar cheese, a small pile of shredded mozzarella cheese, and a few bright green sliced green onion rings scattered delicately, all 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: Adds smoky, savory flavor and meaty texture that pairs perfectly with pierogies.
Frozen pierogies: Convenient and comforting, they soak up the creamy sauce wonderfully during baking.
Cream cheese: Makes the sauce ultra-smooth and tangy, balancing the richness.
Sour cream: Adds extra creaminess with a slight tang that brightens the dish.
Chicken broth: Lightens the sauce so it’s not too thick but still flavorful.
Onion powder & garlic powder: These spices deepen the savory notes without overpowering the other ingredients.
Cheddar cheese: Offers sharpness and a classic cheesy flavor everyone loves.
Mozzarella cheese: For that melty, stringy cheese pull that’s so satisfying.
Green onions: Fresh garnish that adds a pop of color and mild bite for contrast.

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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

One of my favorite things about this Baked Kielbasa Pierogi Casserole Recipe is how adaptable it is. Over time, I’ve tweaked it a bit to match what’s in my fridge and my mood that day, and you should too!

Variation: I like adding sautéed mushrooms or caramelized onions for extra depth—totally changes the texture and flavor in the best way.
Make it vegetarian: Swap out the kielbasa for smoked tempeh or plant-based sausage to keep that smoky vibe without meat.
Spice it up: Sprinkle in some red pepper flakes or a dash of paprika if you want a little heat.
Cheese swap: Try pepper jack or smoked gouda for a different cheesy personality that still melts perfectly.

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

Step 1: Prep and layering magic

Start by preheating your oven to 375°F and greasing a 9×13-inch baking dish—it’s key to keep everything from sticking. Lay down the sliced kielbasa right in the dish, then pour in your frozen pierogies. Trust me, there’s no need to thaw the pierogies first; they’ll cook just right in the oven.

Step 2: Whip up the creamy sauce

Grab a bowl and whisk together softened cream cheese and sour cream until smooth—that’s going to be your base. Then, add in chicken broth, onion powder, garlic powder, salt, pepper, plus half the cheddar and mozzarella cheeses. Mixing it well ensures every pierogi bites into creamy cheesy goodness.

Step 3: Combine and bake

Pour that luscious sauce over the kielbasa and pierogies. Use a spoon or spatula to gently toss everything so it’s evenly coated—I like to fold rather than stir aggressively to keep the pierogies intact. Sprinkle the remaining cheeses on top, cover with foil, and pop it into the oven for 30 minutes.

Step 4: Finish with bubbles and golden crust

After 30 minutes, remove the foil and bake uncovered for 10 more minutes. That’s when the magic happens—the top turns beautifully bubbly and golden. Let it rest a few minutes before adding a handful of sliced green onions and serving. That fresh bite really lifts the whole dish.

Top Tip

Over the years baking this casserole, I learned a few things that make a big difference. These tips helped me avoid soggy pierogies and get that perfect gooey texture every time—hopefully, they’ll help you too.

Don’t skip the foil: Covering the casserole for most of the bake retains moisture, ensuring pierogies cook through without drying out.
Room temperature cream cheese: Softened cream cheese blends smoothly into the sauce — no lumps here!
Toss gently: When mixing sauce with pierogies and kielbasa before baking, fold carefully so pierogies keep their shape.
Let it rest: A few minutes out of the oven helps the casserole thicken slightly, making serving less messy and much more satisfying.

How to Serve Baked Kielbasa Pierogi Casserole Recipe

Kielbasa Pierogi Casserole - Serving Suggestion

Garnishes

I always top mine with sliced green onions—they add a fresh, slightly sharp contrast to the creamy richness. Sometimes I throw on a dollop of sour cream or a sprinkle of crispy bacon bits when I want that extra special touch.

Side Dishes

This casserole stands on its own, but I like pairing it with a simple green salad dressed in a tangy vinaigrette to cut through the richness. Some roasted veggies like green beans or Brussels sprouts work wonderfully too.

Creative Ways to Present

When serving for a special occasion, I garnish with extra fresh herbs like dill or parsley and pop the casserole in a pretty ceramic dish. For a party, you can portion it into smaller oven-safe ramekins for individual servings—always a hit!

Make Ahead and Storage

Storing Leftovers

Leftover Baked Kielbasa Pierogi Casserole stores great in an airtight container in the fridge for up to 3 days. I find it tastes even better after a day as the flavors meld together beautifully.

Freezing

I like to freeze individual portions in freezer-safe containers. When you want to enjoy it later, just thaw overnight in the fridge and reheat gently. The cheese might not be as melty as fresh, but the flavors hold up really well.

Reheating

Reheat leftovers in the oven at 350°F, covered loosely with foil, for about 15-20 minutes until warmed through. This helps keep the pierogies tender and prevents the cheese from drying out. A quick zap in the microwave works too when you’re in a hurry, but the oven method is my go-to.

Frequently Asked Questions:

Can I use fresh pierogies instead of frozen in the Baked Kielbasa Pierogi Casserole Recipe?

Absolutely! Fresh pierogies work great in this casserole and will likely reduce the baking time slightly. Just keep an eye on the dish and check doneness to avoid overcooking.

What’s the best way to get the cheese evenly melted and bubbly on top?

Covering the casserole with foil for the first 30 minutes traps moisture and helps everything cook evenly. Then removing the foil for the last 10 minutes allows the cheese to brown and bubble beautifully without burning.

Can I prepare this casserole ahead of time and refrigerate before baking?

Yes! You can assemble the casserole up to a day in advance. Just cover it tightly with plastic wrap or foil and refrigerate until you’re ready to bake. Bake it straight from the fridge, adding a few extra minutes to the cooking time if needed.

What leftovers pair well with reheated baked kielbasa pierogi casserole?

Leftovers are stellar alongside a fresh green salad or some roasted veggies. A simple pickle plate or sauerkraut on the side also complements the kielbasa’s smoky flavors nicely.

Final Thoughts

This Baked Kielbasa Pierogi Casserole Recipe holds a special spot in my kitchen because it hits every note I want in a comforting meal: easy, hearty, and full of flavor. I love how it brings people together, whether it’s a busy weeknight dinner or a casual weekend lunch. Give it a try—it might just become one of your go-to recipes when you want something warm and satisfying without the fuss.