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Pierogi Casserole

Pierogi Casserole transforms store-bought pierogies into a delicious, layered casserole with a creamy cheese sauce and sliced kielbasa. A family favorite meal!

AN EASY, LAYERED DUMPLING CASSEROLE

If you love pierogies, you’re going to love this multi-layer casserole that can transform frozen dumplings into a mouthwatering, belly filling dinner! I love how simple this is to toss together and toss it into the oven. It’s comfort food to the max!

Looking at a large serving of Pierogi Casserole.

FREQUENTLY ASKED QUESTIONS: 

Can I speed this up by thawing the pierogies first?

Sure thing! I know this recipe does have to cook for a bit to make sure that the frozen pierogies cook all the way through. I was trying to make this easier to throw together by just dumping and baking.
I’m sure if they were thawed, the cooking time wouldn’t be as long, so I would keep an eye on it and begin checking around the 45-minute mark.

Can I use flavored Pierogies?

Absolutely. I used basic ones so the other flavors of the dish could shine through too. But you can easily use other flavored pierogies and change things up.

Why did my casserole turn out runny?

Most of the time this happens because you didn’t get out enough of the water in the sauerkraut. Too much liquid in your sauerkraut will make the casserole runny and watery, so make sure to wring it out extra well before adding to your casserole. A cheese cloth works best for this.

What if I don’t like sauerkraut?

Just leave it out.

What can be served with pierogi casserole?

I would serve some type of vegetable or salad. Steamed carrots, broccoli or mixed vegetables are work well here. Or a simple side salad works perfect too! Many folks like to serve pierogies with pickled beets so you could certainly serve that on the side as well (not my cup of tea but who am I to judge, right?)

How to store leftover casserole?

Leftover Pierogi Casserole should be cooled before being transferred to an airtight container. Leftovers should be stored in the fridge for up to 4 days.

Can this casserole be cut in half?

Yes, this recipe very easily can be cut in half and made in a 9×9-inch casserole dish. I haven’t tested it so can’t give you a specific time so you’ll need to be the best judge of that yourself.

Can pierogi casserole be frozen?

Yes. You can freeze this casserole for up to 3 months.

A serving utensil holding a scoop of Pierogi Casserole 

INGREDIENTS NEEDED: (SEE RECIPE CARD BELOW FOR THE FULL RECIPE)

  • garlic powder and onion powder – I kept the seasoning pretty simple since we have a lot of other flavors going on here but please use your favorite seasonings.
  • dijon mustard – you can use regular yellow mustard.
  • shredded mozzarella cheese – use any of your favorite shredded cheese. I think this would be the most affordable option other than cheddar cheese. Gruyere and Swiss cheese also work well.
  • frozen pierogies – I used classic cheddar but you can certainly have fun and change this up by using different flavors. You will need (2) 16 ounce boxes.
  • kielbasa – I used beef kielbasa. This is another one where you can change up the flavors. If you like a bit of spice, try using a jalapeño cheddar kielbasa.
  • sauerkraut– drained, rinsed well, and the excess water squeezed out. If you don’t like sauerkraut, you could sauté up some sliced onions and use that instead.
Frozen Pierogis, butter, dijon mustard, garlic powder, onion powder, kielbasa, mozzarella cheese, milk, sauerkraut, flour, salt, and pepper.

HOW TO MAKE PIEROGI CASSEROLE

Preheat the oven to 375°F. Spray a 9×13 baking dish with cooking spray and set aside. In a medium saucepan over medium heat, melt the butter. Whisk in the flour, garlic powder, onion powder, salt, and pepper. Cook for 1 minute. Very slowly stream in the milk while whisking constantly then stir in the mustard. Bring to a simmer while whisking occasionally.

collage of two photos: a saucepan with melted butter, flour, garlic powder, onion powder, salt, and pepper; milk being poured into saucepan.

Once at a simmer, take off the heat, stir in half of the cheese until melted, and set aside. Place half of the pierogies on the bottom of the prepared baking dish in an even layer.

collage of two photos: Mozzarella cheese on top of a butter milk sauce mixture in a pot; pierogies layered in a baking dish.

Spread out half of the sauce on top. Add half of the sliced kielbasa, followed by half of the sauerkraut. Add the remaining pierogies on top, then the remaining sauce, sausage, and sauerkraut.

collage of two photos: cheese sauce layered on top of pierogies; sauerkraut and sliced kielbasa layered on top of cheese sauce.

Sprinkle all of the remaining mozzarella on the top. Cover with nonstick foil or spray a piece of foil with cooking spray and cover the dish. Bake for 60 minutes until bubbly. Remove the foil and bake an additional 15 minutes to brown the cheese.

collage of two photos: shredded mozzarella cheese on top of a pierogi casserole; fully baked pierogi casserole with melted cheese.

Allow to cool slightly and serve.

A plate with Pierogi Casserole on it.

CRAVING MORE RECIPES? 

Close up looking at a plate with some homemade Pierogi Casserole.

Pierogi Casserole

A creamy, cheesy casserole loaded with pierogis, kielbasa, and sauerkraut.
5 from 3 votes
Print Pin Rate
Prep Time: 15 minutes
Cook Time: 1 hour 20 minutes
Total Time: 1 hour 35 minutes
Servings: 9 servings

Ingredients

  • 4 Tablespoons (1/2 stick) salted butter
  • 4 Tablespoons all-purpose flour
  • 1 teaspoon garlic powder
  • 1 teaspoon onion powder
  • ½ teaspoon salt
  • ½ teaspoon black pepper
  • 2 cups milk
  • 2 Tablespoons dijon mustard
  • 4 cups shredded mozzarella cheese divided use
  • 2 (16 ounce) packages frozen pierogis
  • 12 ounce package kielbasa, 1/4-inch sliced
  • 8 ounce can sauerkraut, drained, rinsed well, and the excess water squeezed out (optional)

Instructions

  • Preheat the oven to 375°F. Spray a 9×13-inch baking dish with cooking spray and set aside.
  • In a medium saucepan over medium heat, melt the butter. Whisk in the flour, garlic powder, onion powder, salt, and pepper. Cook for 1 minute.
    A saucepan with melted butter, flour, garlic powder, onion powder, salt, and pepper.
  • Very slowly stream in the milk while whisking constantly. Then stir in mustard. Bring to a simmer while whisking occasionally.
    Milk being poured into the butter mixture.
  • Once at a simmer, take off the heat, stir in half of the cheese until melted, and set aside.
    Mozzarella cheese on top of a butter milk sauce mixture in a pot.
  • Place half of the pierogies on the bottom of the prepared baking dish in an even layer.
    Pierogis on the bottom of a casserole dish.
  • Spread out half of the sauce on top.
    Pierogies with a cheese sauce on top in a baking dish.
  • Add half of the sliced kielbasa, followed by half of the sauerkraut.
    Kielbasa and sauerkraut on top of a cheese sauce and pierogis.
  • Add the remaining pierogies on top, then the remaining sauce, sausage, and sauerkraut.
  • Sprinkle all of the remaining mozzarella on the top.
    Shredded mozzarella cheese on top of a pierogi casserole.
  • Cover with nonstick foil or spray a piece of foil with cooking spray and cover the dish. Bake for 60 minutes until bubbly. Remove the foil and bake an additional 15 minutes to brown the cheese.
  • Allow to cool slightly and serve.
    A fresh baked Pierogi Casserole with a serving utensil on top.

Notes

  • Please refer to my FAQ’s (Frequently Asked Questions) and ingredient list above for other substitutions or for the answers to the most common questions.
Course: Dinner, Main Course
Cuisine: American

Nutrition

Calories: 607kcal | Carbohydrates: 49g | Protein: 25g | Fat: 35g | Sodium: 1509mg | Fiber: 4g | Sugar: 8g

Nutritional Disclaimer

“The Country Cook” is not a dietician or nutritionist, and any nutritional information shared is an estimate. If calorie count and other nutritional values are important to you, we recommend running the ingredients through whichever online nutritional calculator you prefer. Calories and other nutritional values can vary quite a bit depending on which brands were used.

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