Slow Cooker Pierogi Casserole with Smoked Sausage

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This Slow Cooker Pierogi Casserole is made with frozen potato and cheese pierogies, smoked sausage, and a rich creamy cheddar sauce. An easy comfort food dinner perfect for busy weeknights.

Slow Cooker Pierogi Casserole

Easy Slow Cooker Pierogi Casserole Recipe

If you’re looking for the ultimate comfort food dinner that practically cooks itself, this Slow Cooker Pierogi Casserole is it. Tender potato and cheese pierogies, smoky sausage, sweet caramelized onions, and a rich, creamy cheddar cheese sauce come together for a hearty meal the whole family will love.

One of my favorite things about this recipe is that it starts with frozen pierogies, so there is no extra prep or boiling required. After a few minutes of browning the sausage and onions, your slow cooker takes over. It’s the kind of meal that’s perfect for busy weekdays, chilly evenings, or anytime you’re craving something warm and satisfying.

Recipe Snapshot

PREP TIME: 15 minutes (No need to thaw the pierogies.)
COOK TIME: 4-5 hours
SERVINGS: 6 to 8
BEST FOR: Comfort food dinner with a rich, creamy cheddar cheese sauce, perfect for busy weeknights.

What Is Slow Cooker Pierogi Casserole?

Slow Cooker Pierogi Casserole is an easy crockpot dinner made with frozen potato and cheese pierogies, smoked sausage, onions, and a creamy cheddar cheese sauce.

Instead of boiling the pierogies separately, everything cooks together in the slow cooker. As the pierogies slowly cook, they absorb the flavorful broth and cream while staying soft and tender. The result is a hearty casserole that’s loaded with cheesy, comforting flavor.

Example: Think of it as a cross between mac and cheese and a hearty sausage casserole, but with pillowy potato-filled pierogies instead of pasta.

Can You Cook Frozen Pierogies in the Slow Cooker?

Absolutely! Frozen pierogies are one of the best shortcuts for slow cooker meals.

  • No thawing is necessary.

  • The pierogies cook gently while absorbing the flavorful broth.

  • Cooking on low helps them stay tender without falling apart.

  • Since they’re fully assembled, there’s very little prep work.

Pro Tip: Resist the urge to cook this recipe on High. Cooking Low and slow helps the pierogies hold their shape and gives the sauce time to become rich and creamy.

Slow Cooker Pierogi Casserole

Why You’ll Love This Slow Cooker Pierogi Casserole

  • Only 15 minutes of hands-on prep
  • Family-friendly comfort food
  • Perfect for busy weeknights
  • Rich, creamy cheese sauce
  • Uses frozen convenience ingredients
  • Great for feeding a crowd
  • Easy to customize with your favorite sausage or vegetables
  • Leftovers reheat beautifully
Ingredients for Slow Cooker Pierogi Casserole

Ingredients for Pierogi Casserole

  • Smoked sausage: Adds smoky, savory flavor and plenty of protein. Smoky Kielbasa also works well.

  • Small onion: Becomes sweet and flavorful after caramelizing with the sausage.

  • Butter: Helps brown the sausage and onions while adding richness.

  • Frozen potato and cheese pierogies: The star of the recipe. No thawing or boiling required.

  • Chicken broth: Adds moisture and flavor while the pierogies cook.

  • Heavy cream: Creates a rich, velvety sauce.

  • Cream cheese: Thickens the sauce and gives it a creamy texture.

  • Shredded cheddar cheese: Melts into the sauce for cheesy goodness and creates the perfect topping.

Pro Tip: Freshly shredded cheddar melts much more smoothly than pre-shredded cheese because it doesn’t contain anti-caking agents.

How to Make Slow Cooker Pierogi Casserole

  1. In a large skillet, melt the butter over medium heat. Add the sliced smoked sausage and onion. Cook until the sausage is lightly browned and the onions are soft and caramelized.
  2. Transfer the sausage and onion mixture to a 4-6 quart crockpot.
  3. Add the frozen pierogies and gently stir to combine.
  4. Pour in 1 cup of the chicken broth and the heavy cream.
  5. Cover and cook on Low for 4 to 5 hours.
  6. About 1 hour before serving, whisk together the softened block of cream cheese and the remaining 1 cup of chicken broth until smooth.
  7. Pour the cream cheese mixture into the slow cooker and give it a gentle stir.
  8. Stir in 1½ cups of the shredded cheddar cheese until melted.
  9. Sprinkle the remaining ½ cup of cheddar cheese over the top.
  10. Cover and cook for about 5 minutes, or until the cheese is melted.
  11. Garnish with extra cheese, green onions, or sour cream if desired and serve warm.

Tips for the Best Slow Cooker Pierogi Casserole

  • Brown the sausage before adding it to the slow cooker for extra flavor.
  • Add the cream cheese mixture during the last hour so the sauce stays smooth and creamy.
  • Stir gently to keep the pierogies from breaking apart.
  • Use freshly shredded cheese for the creamiest sauce.
  • Avoid overcooking, which can make the pierogies too soft.
  • Let the casserole sit for about 10 minutes before serving so the sauce thickens slightly.
Slow Cooker Pierogi Casserole

What to Serve with Slow Cooker Pierogi Casserole

This hearty casserole is filling on its own, but adding a vegetable or fresh side dish makes it a complete meal.

Great side dishes include:

Slow Cooker Pierogi Casserole

Easy Recipe Variations



  • Use kielbasa: Swap smoked sausage for kielbasa for a classic Polish-inspired flavor.
  • Turkey sausage or turkey kielbasa: Turkey offers big flavor with lower fat and calories.
  • Add bacon: Sprinkle crispy bacon on top before serving.
  • Make it spicy: Add diced jalapeños, crushed red pepper flakes, or pepper jack cheese.
  • Add vegetables: Stir in broccoli, mushrooms, spinach, or bell peppers during the last hour of cooking.
  • Try different pierogi flavors: Loaded baked potato, cheddar bacon, onion, or jalapeño varieties all work well.
Slow Cooker Pierogi Casserole

Storage and Reheating

  • Store leftovers in an airtight container in the refrigerator for up to 4 days.

  • Freeze for up to 2 months. Thaw overnight in the refrigerator before reheating.

  • Reheat individual portions in the microwave until warmed through.

  • To reheat a larger batch, warm it in the slow cooker or on the stovetop over low heat.

  • If the sauce thickens too much, stir in a splash of chicken broth or milk until it reaches your desired consistency.

Common Mistakes to Avoid

  • Skipping the step of browning the sausage and onions
  • Cooking the casserole too long
  • Stirring too often, which can break apart the pierogies
  • Using cold cream cheese instead of softened cream cheese
  • Adding all of the cheese at the beginning
  • Using High heat for the full cooking time

More Easy Slow Cooker Meals for Busy Weeknights

FAQs about cheesecloth

Yes. Fresh pierogies can be used, but they cook faster than frozen. Cook on low 3-4 hours. 

Absolutely. Diced ham, shredded chicken, cooked bacon, or even sautéed mushrooms make great substitutes.

Yes. Brown the sausage and onions ahead of time and refrigerate them. Assemble everything in the slow cooker insert the next day and start cooking when you’re ready.

Frozen pierogies naturally release some moisture as they cook. Adding the cream cheese mixture during the last hour helps create a thicker, creamier sauce.

A 6-quart slow cooker gives the ingredients enough room to cook evenly without overcrowding.

Yes. Use an 8-quart slow cooker if doubling the recipe, and gently stir the ingredients to keep the pierogies intact.

Slow Cooker Pierogi Casserole

Crockpot Pierogi Casserole

Whether you’re feeding the family on a busy weeknight or simply craving a comforting dish, this Slow Cooker Pierogi Casserole is a delicious meal that’s sure to earn a spot among your favorite recipes. The tender pierogies soak up the rich, creamy sauce while the smoked sausage and sharp cheddar cheese add plenty of hearty flavor in every bite. The next time you need an easy slow cooker recipe that delivers big on comfort with very little effort, give this one a try. I have a feeling it will become a regular part of your dinner rotation!

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Slow Cooker Pierogi Casserole
Slow Cooker Pierogi Casserole

Slow Cooker Pierogi Casserole with Smoked Sausage

Melisha Kreppein
This Slow Cooker Pierogi Casserole is the ultimate comfort food made with frozen potato and cheese pierogies, smoked sausage, caramelized onions, and a rich, creamy cheddar cheese sauce. With just 15 minutes of prep, your slow cooker does the rest, making this hearty, family-friendly dinner perfect for busy weeknights. It's an easy, satisfying meal that's sure to become a regular in your dinner rotation.
No ratings yet
Prep Time 15 minutes
Cook Time 4 hours
Course Main Dish
Cuisine Polish
Servings 6 servings
Calories 857 kcal

Equipment

Ingredients
  

  • 1 lb smoked sausage sliced
  • 1 small onion sliced
  • 1 tbsp butter
  • 36 ct frozen potato and cheese pierogies
  • 2 cups chicken broth divided
  • 1 cup heavy cream
  • 8 oz cream cheese softened
  • 2 cups shredded cheddar cheese reserve 1/2 cup for topping

Instructions
 

  • In a large skillet, melt the butter over medium heat. Add the sliced smoked sausage and onion. Cook until the sausage is lightly browned and the onions are soft and caramelized.
  • Transfer the sausage and onion mixture to a 4-6 quart crockpot.
  • Add the frozen pierogies and gently stir to combine.
  • Pour in 1 cup of the chicken broth and the heavy cream.
  • Cover and cook on Low for 4 to 5 hours.
  • About 1 hour before serving, whisk together the softened block of cream cheese and the remaining 1 cup of chicken broth until smooth.
  • Pour the cream cheese mixture into the slow cooker and give it a gentle stir.
  • Stir in 1½ cups of the shredded cheddar cheese until melted.
  • Sprinkle the remaining ½ cup of cheddar cheese over the top.
  • Cover and cook for about 5 minutes, or until the cheese is melted.
  • Garnish with extra cheese, green onions, or sour cream if desired and serve warm.

Nutrition

Calories: 857kcalCarbohydrates: 122gProtein: 30gFat: 29gSaturated Fat: 14gCholesterol: 66mgSodium: 1608mgPotassium: 101mgFiber: 6gSugar: 16gCalcium: 325mgIron: 9mg
Keyword Slow Cooker Pierogi Casserole
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