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Easy Cheesy Kielbasa Pierogi Casserole (One-Pan Oven Bake)

A fork lifts a cheesy pierogi from a plate of pierogi casserole topped with sliced sausage.

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Make this easy pierogi casserole for a hearty and delicious dinner that hits the spot on busy weeknights. This one-pan dish uses frozen pierogi, smoked sausage, and creamy cheese sauce for simple comfort food.

Ingredients

Scale
  • 1 (12 ounce) package smoked kielbasa sausage, sliced
  • 1 (16 ounce) package frozen potato and cheese pierogi
  • 1 (10.5 ounce) can condensed cheddar cheese soup
  • 1/2 cup milk
  • 1/2 cup sour cream
  • 1 cup shredded cheddar cheese, divided
  • 1/4 cup chopped green onion (optional)

Instructions

  1. Preheat your oven to 375 degrees Fahrenheit. Lightly grease a 9×13 inch baking dish.
  2. In a large skillet over medium heat, cook the sliced kielbasa until lightly browned, about 5 to 7 minutes. Drain off any excess grease.
  3. In a large bowl, whisk together the condensed cheddar cheese soup, milk, and sour cream until smooth. Stir in half of the shredded cheddar cheese.
  4. Add the frozen pierogi and the cooked kielbasa to the cheese mixture. Gently toss everything together until the pierogi and sausage are evenly coated.
  5. Pour the mixture into your prepared baking dish, spreading it into an even layer.
  6. Bake for 25 to 30 minutes, or until the casserole is bubbly and the pierogi are heated through.
  7. Remove the dish from the oven. Sprinkle the remaining 1/2 cup of shredded cheddar cheese and the chopped green onion over the top.
  8. Return the casserole to the oven for 5 more minutes, or until the cheese is melted and lightly golden.
  9. Let the cheesy pierogi dinner rest for 5 minutes before you serve it.

Notes

  • You can substitute the cheddar soup with cream of mushroom or cream of chicken soup for a different flavor profile.
  • For a richer flavor, use farmer’s cheese or cream cheese mixed into the sauce base.
  • If you want to make this a slow cooker pierogi bake, combine all ingredients (except the final cheese topping) in the crockpot and cook on low for 3 to 4 hours. Top with cheese and cook on high for 15 minutes until melted.

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