Crockpot Pierogi Casserole with Kielbasa

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Author: Paul Moreau
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Crockpot Pierogi Casserole with Kielbasa is a beginner-friendly main dish that combines warm layers of tender pierogi, smoky kielbasa, and gooey cheddar in a creamy mushroom sauce. This easy dinner simmers away hands-free in your slow cooker, delivering pillowy perfection just when you need a cozy, comfort-food fix. Set it in the morning, forget it all day, and come home to cheesy bliss that’s bound to become your new weeknight favorite.

Key Ingredients

Gather these simple pantry staples to whip up the Crockpot Pierogi Casserole with Kielbasa. Each ingredient plays a crucial role in building layers of flavor and creamy texture—get ready to stack and slow-cook your way to comfort-food heaven!

  • 1 pound frozen pierogi: Pillowy dumplings that soak up the creamy mushroom sauce, creating tender layers.
  • 1 pound kielbasa sausage, sliced: Smoky protein that adds savory depth and a hearty bite.
  • 1 medium onion, diced: Provides sweetness and aromatic flavor, balancing the richness.
  • 2 cups shredded cheddar cheese: Melts into gooey pockets of cheesy goodness throughout the casserole.
  • 10.5-ounce can condensed cream of mushroom soup: Forms a velvety sauce that ties all the layers together.
  • 1/2 cup sour cream: Adds tangy creaminess, enhancing the sauce’s smooth texture.
  • 1/4 cup milk: Thins out the sauce for perfect coating and even cooking.
  • 1 tablespoon butter, melted: Boosts richness and helps blend flavors in the soup mixture.
  • 1 teaspoon garlic powder: Lends a subtle garlic punch, rounding out the savory profile.
  • 1/2 teaspoon ground black pepper: Introduces gentle heat and depth of flavor.
  • 1/2 teaspoon paprika: Contributes a mild smokiness and warm color.
  • 2 tablespoons fresh parsley, chopped: Brightens the dish with a fresh, herbal finish.

How To Make Crockpot Pierogi Casserole with Kielbasa

This recipe is all about effortless layering and slow-cooking. You’ll build alternating tiers of pierogi, kielbasa, onion, and cheese, then pour a rich, spiced cream sauce over the top. In just a few simple steps—spraying, layering, whisking, and cooking—you’ll transform frozen dumplings into a cozy, cheesy casserole that’s perfect for busy days. Ready to break down the process? Here’s how it comes together:

1. Prepare the crockpot: Spray the inside of the crockpot with nonstick cooking spray to prevent sticking.

2. Layer the first half: Place half of the frozen pierogi in an even layer at the bottom of the crockpot.

3. Add kielbasa and onions: Top the pierogi with half of the sliced kielbasa and half of the diced onion, spreading them evenly.

4. First cheese layer: Sprinkle half of the shredded cheddar cheese over the kielbasa and onions to start building those cheesy pockets.

5. Repeat layering: Repeat the pierogi, kielbasa, onion, and cheddar cheese layers until all ingredients are used.

6. Mix the sauce: In a medium bowl, whisk together the condensed cream of mushroom soup, sour cream, milk, melted butter, garlic powder, black pepper, and paprika until smooth.

7. Top with sauce: Pour the soup mixture evenly over the layered ingredients, ensuring each pierogi gets a coating.

8. Slow-cook: Cover and cook on low for 4 to 5 hours, or until the pierogi are tender and the casserole is heated through.

9. Stir before serving: Uncover and gently stir the casserole to combine the layers and distribute the sauce.

10. Garnish and serve: Sprinkle chopped fresh parsley on top just before serving for a pop of color and freshness.

Serving Suggestions

Once your Crockpot Pierogi Casserole with Kielbasa is bubbling hot, think about complementing its rich, creamy layers with bright and textural sides. A well-chosen accompaniment balances the hearty flavors and keeps the meal feeling fresh. From crisp greens to zesty condiments, here are four easy ways to round out this comforting main dish:

  • Crisp green salad: Toss mixed salad greens with a lemon vinaigrette for a bright contrast to the cheesy casserole.
  • Garlicky breadsticks: Warm store-bought or homemade breadsticks brushed with garlic butter are perfect for mopping up extra sauce.
  • Steamed vegetables: Lightly steam broccoli or green beans, then finish with a squeeze of lemon to cut through the richness.
  • Sweet-tart applesauce: Serve a spoonful of applesauce on the side for a refreshing counterpoint to the smoky kielbasa.

Tips For Perfect Crockpot Pierogi Casserole with Kielbasa

Ready to level up your slow-cooker game? A few simple tweaks can transform good into unforgettable. Keep these friendly pointers in mind before you layer and set your crockpot—your future self will thank you for every bite of that extra-special comfort food!

  • You can substitute smoked sausage for kielbasa if desired.
  • For extra creaminess stir in an additional 1/4 cup of sour cream.
  • To keep the casserole warm after cooking set the crockpot to the warm setting.
  • Store any leftovers in an airtight container in the refrigerator for up to three days.

How To Store It

After indulging in cheesy goodness, you’ll want to keep leftovers tasting just as delightful. Proper storage locks in moisture and flavor so you can enjoy the casserole again without any sogginess or flavor loss. Consider these four methods to preserve your Crockpot Pierogi Casserole with Kielbasa:

  • Refrigerate in an airtight container: Cool the casserole slightly, then seal in a sturdy container and refrigerate for up to three days.
  • Use the crockpot’s warm setting: If you’re serving over time, switch to warm to hold the dish at a safe temperature without overcooking.
  • Freeze individual portions: Divide leftovers into freezer-safe containers, label them with the date, and freeze for up to two months.
  • Reheat gently: Thaw frozen portions overnight, then microwave until hot or bake in a 350°F oven for 15–20 minutes, stirring halfway to maintain creamy consistency.

Frequently Asked Questions

Got questions about this comforting casserole? You’re not alone—here are the top queries answered so you can cook with confidence!

  • Can I use fresh or refrigerated pierogi instead of frozen in this casserole?

Yes. If you use fresh or refrigerated pierogi, reduce the cooking time by about 30–60 minutes. Start checking for tenderness after 3 hours on low (or about 1½ hours on high) since they don’t need additional time to thaw.

  • What substitutions can I make for the kielbasa if I don’t have any?

Smoked sausage makes a great substitute and works in the same quantity and slices. If your sausage is saltier than kielbasa, you may wish to reduce added salt or seasonings slightly. You can also try bratwurst or chicken sausage for a milder flavor.

  • How can I make the casserole extra creamy?

For a richer texture, stir in an additional ¼ cup sour cream or a splash of heavy cream into the soup mixture before pouring over the layers. You can also swap half of the milk for cream or add 2 ounces of cream cheese, softened, into the mixture.

  • Can I cook this recipe on the high setting instead of low?

Yes. Cooking on high will take approximately 2 to 3 hours. Begin checking for doneness around 2 hours by testing a pierogi for tenderness and ensuring the casserole is heated through.

  • How should I store and reheat any leftovers?

Transfer leftovers into an airtight container and refrigerate for up to three days. To reheat, microwave individual portions until warm, or return the casserole to the crockpot on “warm” or to a 350°F oven for 15–20 minutes. Stir gently before serving.

  • Can I assemble the casserole in advance?

Absolutely. Layer the pierogi, kielbasa, onion, and cheese, then cover and refrigerate for up to 24 hours. When ready to cook, whisk the soup mixture and pour it over the layers. Allow the crockpot to come to room temperature briefly before switching on to ensure even cooking.

  • What additional vegetables or mix-ins work well in this casserole?

Sliced bell peppers, mushrooms, or a handful of spinach can be layered with the onions and kielbasa. You can also stir in frozen peas or corn into the soup mixture. Just be mindful of extra moisture and adjust cooking time if adding large volumes of vegetables.

  • How do I prevent the pierogi from sticking to the sides or bottom of the crockpot?

Spray the entire interior of the crockpot generously with nonstick cooking spray. If you forget, you can use a crockpot liner or lightly grease the pot with butter or oil before layering.

What Makes This Special

There’s something downright magical about slow-cooked layers of pierogi and kielbasa bathing in a creamy mushroom-cheddar sauce—and this casserole nails it every time. It’s foolproof for busy cooks, beginner-friendly, and big on flavor, making it perfect for family dinners or casual gatherings. The hands-off approach means you can multitask while your dinner transforms into a cheesy, comforting masterpiece. Print and save this recipe for nights when you crave cozy, crowd-pleasing fare, and don’t forget to drop a comment or share your tips if you give it a whirl!

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Crockpot Pierogi Casserole with Kielbasa

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  • Author: Paul Moreau
  • Prep Time: 15 mins
  • Cook Time: 300 mins
  • Total Time: 5 hours 15 minutes
  • Yield: 6 servings
  • Category: Main Dishes

Description

Smoky kielbasa and pillowy pierogi nestle under a blanket of melted cheddar, then swim in a creamy mushroom sauce as they slow-cook to tender, cheesy perfection. A cozy meal with zero babysitting.


Ingredients

  • 1 pound frozen pierogi
  • 1 pound kielbasa sausage sliced
  • 1 medium onion diced
  • 2 cups shredded cheddar cheese
  • 10.5 ounce can condensed cream of mushroom soup
  • 1/2 cup sour cream
  • 1/4 cup milk
  • 1 tablespoon butter melted
  • 1 teaspoon garlic powder
  • 1/2 teaspoon ground black pepper
  • 1/2 teaspoon paprika
  • 2 tablespoons fresh parsley chopped


Instructions

  1. Spray the inside of the crockpot with nonstick cooking spray.
  2. Place half of the frozen pierogi in an even layer in the bottom of the crockpot.
  3. Top the pierogi with half of the sliced kielbasa and half of the diced onion.
  4. Sprinkle half of the shredded cheddar cheese over the kielbasa and onion.
  5. Repeat the layers with the remaining pierogi, kielbasa, onion, and cheese.
  6. In a medium bowl whisk together the condensed soup, sour cream, milk, melted butter, garlic powder, black pepper, and paprika until smooth.
  7. Pour the soup mixture evenly over the layered ingredients in the crockpot.
  8. Cover and cook on low for 4 to 5 hours, or until the pierogi are tender and the casserole is heated through.
  9. Uncover and gently stir the casserole to combine the layers before serving.
  10. Garnish with chopped fresh parsley just before serving.

Notes

  • You can substitute smoked sausage for kielbasa if desired.
  • For extra creaminess stir in an additional 1/4 cup of sour cream.
  • To keep the casserole warm after cooking set the crockpot to the warm setting.
  • Store any leftovers in an airtight container in the refrigerator for up to three days.

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