Cheesy Kielbasa Pierogi Bake

Featured in Cozy Comfort Food Classics.

Here’s a cozy one-pot meal with soft pierogi, smoky kielbasa, and sweet onions, drenched in a tasty mix of sour cream, creamy mushroom soup, and melted butter. Baking everything together lets the flavors seep into the pierogi, giving you a super tasty, smoky bite. A blanket of gooey cheddar on top and a handful of fresh chives makes this a must for comfort food cravings. Whip this up when you want a fuss-free, stick-to-your-ribs dinner. It’s perfect for get-togethers or just to make weeknights feel special, bringing classic Eastern European vibes to your table.

Sarah Recipes
Updated on Tue, 20 May 2025 21:05:23 GMT
Cheesy Kielbasa Pierogi Bake in Slow Cooker Pin it
Cheesy Kielbasa Pierogi Bake in Slow Cooker | recipesaddicts.com

When you crave a filling meal but can't be bothered with lots of fuss, this slow-cooked pierogi mashup with kielbasa is a real life-saver. Creamy pierogi and smoky sausage come together with hardly any effort in your crockpot. Anytime I make this, even a regular night at home suddenly feels cozy and special, especially when it’s cold outside and everyone’s hungry for something warm.

I tossed this together on a chilly day, just because friends randomly dropped by. They’re still asking me to whip it up again.

Tasty Ingredients

  • Chopped chives: slice these fresh—they add a splash of green and bright flavor right before serving
  • Salt and pepper: season to your liking but always have a taste of the sauce first
  • Butter: for a rich sauce that pulls everything together—real butter works best
  • Shredded cheddar cheese: adds a melty blanket on top—try extra sharp for a bolder punch
  • Condensed cream of mushroom soup: this brings all the flavors together—stick with the brand you know
  • Onion: diced up for sweetness and extra flavor—use fresh for max taste
  • Sour cream: goes in for a tangy kick and creamy feel—full fat is the way to go
  • Kielbasa: smoky sausage with snap—grab one from the deli if you can for the best flavor
  • Frozen pierogi: these are the main stars—look for potato and cheese filling for the classic vibe

Easy Steps to Follow

Finishing Touch:
Once cheese is bubbling and melted, dish into bowls. Chop and sprinkle chives over the top for that fresh kick.
Cheddar Blanket:
About half an hour before it's done, throw shredded cheese on top, close the lid, and let it get gooey.
Let It Go Low and Slow:
Put the lid on and let the crockpot do its thing for four or five hours on low. Check after four by poking the pierogi with a fork. Don’t stir while it cooks.
Do Layers Again:
Stack the rest of the pierogi, then the rest of the kielbasa and onion, and pour on what’s left of the sauce. Smooth it all out so it cooks nice and even.
Sauce Mix:
In a bowl, blend soup, sour cream, and melted butter until it's super smooth. This is your creamy magic sauce.
Add the Savory Goodies:
Toss half your kielbasa slices and onions across the pierogi. You want every bite to be balanced with sausage and onion bits.
Pierogi Foundation:
Plop half your frozen pierogi down in a layer at the bottom. They give your casserole some serious backbone.
Get the Slow Cooker Ready:
Spritz the crockpot inside, making sure sides and bottom are coated so nothing sticks later.
Sauce Up the Layers:
Spoon on half the creamy sauce mix over your pierogi, sausage, and onion. Spread it around as much as you can so it all stays tender while cooking.
A bowl piled high with slow-cooked pierogi casserole and kielbasa. Pin it
A bowl piled high with slow-cooked pierogi casserole and kielbasa. | recipesaddicts.com

Cheesy bits on top never last long at my house. My kids race to grab the best scoop, and I can't lie—I sneak in some extra cheese for them when nobody’s looking.

How to Store Leftovers

Pop leftover casserole in the fridge for up to three days. Use containers that seal tight. When you reheat it in the oven or microwave, add a splash of milk or another dollop of sour cream to keep it creamy and smooth.

Swap Things Up

Try swapping kielbasa for other smoked sausages like turkey or andouille for a lighter or spicier twist. No cheddar? Monterey Jack or Swiss work great too. Greek yogurt steps in for sour cream if that’s what you’ve got at home.

Ways to Serve

This meal is super filling solo, but I like it with a crisp salad or some roasted veggies. I also stick some extra sour cream and a bottle of hot sauce on the table so everyone can pile on what they like.

Super easy crockpot casserole piled with pierogi and kielbasa. Pin it
Super easy crockpot casserole piled with pierogi and kielbasa. | recipesaddicts.com

Backstory

Pierogi and kielbasa are big-time comfort food in Eastern Europe, especially in Polish and Ukrainian homes. This dish is my shortcut take, inspired by the handmade pierogi dinners I remember from my old neighbors’ kitchens.

Frequently Asked Questions

→ Can I swap frozen pierogi with fresh ones?

For sure! Fresh pierogi work great. Just check them a bit sooner since they get tender quicker.

→ Are leftovers good the next day?

Oh yeah. Pop any extras in a sealed container and keep them in the fridge up to three days. Warm gently so they don’t dry out.

→ What's a good kielbasa substitute?

You can try using smoked sausage, bratwurst, or some cooked bacon instead. Season to taste since flavors can differ.

→ How do I go meat-free for this meal?

Just leave out the kielbasa and switch the soup to veggie broth. Toss in extra veggies like peppers or mushrooms for more flavor.

→ How do I stop pierogi from clumping together?

Layer stuff with the sauce and toppings. That way, pierogi stay apart and come out moist each time.

→ Can I prep this ahead of time?

Yup! You can put everything into your slow cooker insert, snap on a lid, and keep it in the fridge overnight. Just start cooking the next day.

Cheesy Kielbasa Pierogi Bake

Layers of pillowy pierogi, juicy kielbasa, and onion topped with cheddar and cream sauce. Baked nice and slow for a soul-warming meal.

Prep Time
15 Minutes
Cook Time
270 Minutes
Total Time
285 Minutes
By: Sarah

Category: Comfort Food

Difficulty: Easy

Cuisine: Eastern European

Yield: 6 Servings (1 casserole)

Dietary: ~

Ingredients

→ Main Ingredients

01 1 medium chopped onion
02 450 grams sliced kielbasa sausage
03 450 grams frozen pierogi

→ Sauce and Dairy

04 120 grams cheddar cheese, shredded
05 60 grams melted unsalted butter
06 300 grams condensed mushroom soup
07 240 millilitres sour cream

→ Seasonings and Garnish

08 Sprinkle of fresh chives, chopped, as topping
09 Ground black pepper, add as much as you like
10 Salt, shake in to taste

Instructions

Step 01

Spray the slow cooker bowl with a non-stick spray so stuff doesn't stick later.

Step 02

Spread half the pierogi over the bottom of the slow cooker. Toss in half the onion and scatter half the kielbasa on top.

Step 03

Grab a bowl and blend together melted butter, the condensed soup, and sour cream till it all looks smooth.

Step 04

Spoon half the sauce over your first layer of pierogi, onion, and sausage, covering everything evenly.

Step 05

Pop in the rest of the pierogi, drop in the remaining onion and kielbasa, and top everything off with the last bit of sauce.

Step 06

Throw the lid on and leave it on low for about 4 to 5 hours. The pierogi should be soft when they're ready.

Step 07

Once there's about a half hour to go, take off the lid just long enough to scatter shredded cheddar over the top. Cover again so the cheese melts completely.

Step 08

Give it a dash of black pepper and salt if you want. Dish it up hot and throw on some chopped chives to make it look nice.

Notes

  1. Letting it sit for ten minutes before scooping will keep the layers together and make serving way easier.

Tools You'll Need

  • Slow cooker
  • Knife
  • Cutting board
  • Mixing bowl
  • Whisk

Allergy Information

Please check ingredients for potential allergens and consult a health professional if in doubt.
  • Has dairy (cheddar, butter, sour cream, condensed soup), gluten (pierogi), and could have wheat or mushroom too.

Nutrition Facts (Per Serving)

It is important to consider this information as approximate and not to use it as definitive health advice.
  • Calories: 510
  • Total Fat: 30 g
  • Total Carbohydrate: 44 g
  • Protein: 18 g