Crockpot Pierogi Casserole with Kielbasa – Easy Comfort Food

Crockpot Pierogi Casserole with Kielbasa is that dreamy comfort food you whip up when your week’s already full, your kids are picky, and your kitchen ambition is hanging by a thread. This dish pulls double duty: hearty enough to feed a crowd and simple enough that you don’t need a culinary degree (or even a clean stovetop).

Picture this: layers of buttery pierogi, smoky kielbasa, creamy mushroom sauce, and gooey cheddar cheese—cooked low and slow while you live your life. This cozy casserole is the definition of set-it-and-forget-it, and yes, the leftovers (if any) are just as good reheated. Whether you’re chasing dinner success or just something warm to spoon into a bowl, this Crockpot Pierogi Casserole with Kielbasa hits the spot.

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What is Crockpot Pierogi Casserole with Kielbasa?

Crockpot Pierogi Casserole with Kielbasa is exactly what it sounds like—your favorite Polish dumplings (pierogi), nestled in layers with smoky kielbasa sausage, onions, creamy mushroom sauce, and cheese, all slow-cooked to perfection. The pierogi—typically filled with potato and cheese—soak up the flavors as they cook, becoming extra tender and flavorful.

Meanwhile, the kielbasa brings that bold, smoky kick that balances out the richness. It’s a dump-and-go kind of dish, perfect for those days when you’re juggling work, kids, and the sudden urge to binge-watch a show guilt-free. Unlike baked casseroles that can dry out or require constant watching, the slow cooker keeps everything moist and melty. It’s fuss-free comfort with an Eastern European twist—and trust me, your kitchen will smell amazing.

Reasons to Try Crockpot Pierogi Casserole with Kielbasa

First off, Crockpot Pierogi Casserole with Kielbasa is a lifesaver when you’re too busy to think straight but still want a meal that tastes like you tried. It’s ridiculously easy to make—no boiling, no sautéing, no babysitting the stove. Just layer and let the slow cooker do its magic. Plus, it’s picky-eater approved (because who says no to cheesy pierogi and sausage?).

The ingredient list is simple and affordable, so you won’t need a last-minute grocery run. And let’s not ignore the flavor—creamy, smoky, cheesy, with just enough onion to make it cozy but not overpowering. It’s one of those recipes that tastes like Sunday dinner but works perfectly for a weeknight. Bonus: it makes a lot, so you’ve got lunch for tomorrow—if anyone leaves leftovers.

Ingredients Needed to Make Crockpot Pierogi Casserole with Kielbasa

• 1 package (16 oz) frozen pierogi (potato & cheese preferred)
• 1 pound kielbasa, sliced into rounds
• 1 cup sour cream
• 1 onion, chopped
• 1 can (10.5 oz) condensed cream of mushroom soup
• 1 cup shredded cheddar cheese
• 1/4 cup butter, melted
• Salt and pepper to taste
• Chopped chives for garnish (optional but fancy-looking)

Instructions to Make Crockpot Pierogi Casserole with Kielbasa

This dish is the kind of easy you dream about on chaotic weeknights. Everything goes into one pot, and your slow cooker does the heavy lifting.

Spray the Crockpot

Grab your non-stick spray and give the inside of your slow cooker a good coat. Trust me, cleanup is not the time to start feeling adventurous.

Layer Pierogi, Kielbasa & Onion

Add half of your frozen pierogi (no need to thaw!) to the bottom of the crockpot. Top with half the sliced kielbasa and half the chopped onion.

Mix the Creamy Sauce

In a bowl, stir together the cream of mushroom soup, sour cream, and melted butter. This is the creamy goodness that ties it all together.

Add Sauce and Repeat Layers

Pour half the creamy sauce over the first layer. Then repeat with the remaining pierogi, kielbasa, onion, and sauce. It should feel like you’re building a lasagna, but with pierogi—and zero stress.

Let It Cook Low & Slow

Cover and cook on low for 4 to 5 hours. The pierogi will turn tender, and the flavors will become best friends. (You can go do life now.)

Add the Cheese

About 30 minutes before serving, sprinkle the shredded cheddar on top. Put the lid back on and let it melt into glorious, gooey magic.

Serve Warm & Garnish

Scoop it out while it’s warm and gooey. Sprinkle with chives if you’re feeling a little extra—or trying to impress someone.

Looking for more slow cooker comfort food? Try this cozy creamy dill pierogi soup or our reader-favorite chicken noodle casserole.

What to Serve with Crockpot Pierogi Casserole with Kielbasa

This dish is rich, hearty, and full of big flavor, so sides can be simple. A crisp green salad with a zippy vinaigrette balances the richness nicely. Roasted green beans or steamed broccoli are great for adding color (and maybe coaxing your kids into eating something green). If you want to lean into the comfort food vibe, a slice of crusty bread or a biscuit is perfect for scooping up all that cheesy sauce. And hey, if you’re feeding a crowd, offer something light for dessert—like mint chocolate chip ice cream cake or St. Patrick’s Day Oreo truffles—just to round it out with a little sweet fun.

Key Tips for Making Crockpot Pierogi Casserole with Kielbasa

• Don’t thaw the pierogi—frozen works better in the slow cooker. They hold their shape and soak up the sauce like champs.
• Slice the kielbasa a little thick so it doesn’t get lost in the mix.
• Use a sharp cheddar for bold flavor, or mix in mozzarella if you like it extra gooey.
• If your onions are super strong, give them a quick sauté before layering to mellow the bite.
• Want to sneak in veggies? Toss in some baby spinach during the last hour of cooking—it wilts down and blends in nicely.
• Love spice? A few dashes of hot sauce or a sprinkle of red pepper flakes in the sauce mixture can give it a little kick.

Storage and Reheating Tips for Crockpot Pierogi Casserole with Kielbasa

Got leftovers? Lucky you. Store them in an airtight container in the fridge for up to 4 days. The flavors actually get deeper overnight, so lunch the next day might be even better. To reheat, pop a portion in the microwave for about 1-2 minutes, or warm it in a 300°F oven covered with foil until heated through. If things look a little dry, stir in a spoonful of sour cream or splash of milk before reheating. This dish also freezes surprisingly well—just let it cool completely, then store in a freezer-safe container for up to 2 months. Thaw in the fridge overnight before reheating. Quick comfort food, just when you need it.

FAQs

Can I use fresh pierogi instead of frozen?
Absolutely. Just cut the cooking time slightly—check for tenderness around the 3.5-hour mark.

What’s the best kielbasa to use?
Go with smoked kielbasa for the deepest flavor. Turkey kielbasa works too if you want it a bit lighter.

Can I add vegetables?
Totally. Mushrooms, spinach, or even chopped bell peppers are great tossed in.

Do I have to use cream of mushroom soup?
It adds richness, but if you’re not a fan, cream of chicken or even cream of celery works as a swap.

Is this dish kid-friendly?
Yes, yes, and yes. It’s cheesy, creamy, and sausage-y—what’s not to love?

Final Thoughts

If you’re looking for a dinner that practically cooks itself and wins over even the pickiest eaters, Crockpot Pierogi Casserole with Kielbasa is your go-to. It’s the slow cooker hero you didn’t know you needed, with rich, savory layers that feel like a hug in a bowl. Whether it’s a weeknight, game day, or you just want leftovers that don’t feel like a chore, this dish delivers every time. And hey—next time you want to switch it up, check out our other easy dinners like easy honey garlic chicken or creamy ranch chicken. Happy slow cooking!

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