My Polish neighbor brought this dish to the potluck, and the pan was licked clean in minutes! It’s the ultimate comfort food.

This Oven-Baked Pierogi Kielbasa Casserole combines frozen potato-and-cheese pierogies with sliced smoked kielbasa in a rich, creamy mushroom sauce. Baked under a double layer of sharp cheddar cheese, this hearty casserole delivers classic Eastern European comfort food flavor in an easy, crowd-pleasing bake.

Oven-Baked Pierogi Kielbasa Casserole

Ingredients:

Step-By-Step Directions:

1. Preheat and prep: Preheat your oven to 375°F (190°C) and lightly grease a 9×13-inch baking dish.

2. Layer pierogies and sausage: Arrange the frozen pierogies in a single layer along the bottom of the dish, then scatter the sliced kielbasa evenly over the top.

3. Whisk sauce: In a medium bowl, whisk together the heavy cream and condensed cream of mushroom soup until smooth.

4. Assemble and cover: Pour the cream sauce evenly over the pierogies and sausage, then sprinkle with 1 1/2 cups of the shredded sharp cheddar cheese.

5. Bake covered: Cover the dish tightly with foil and bake on the middle rack for 25 minutes, until the sauce is hot and bubbling around the edges.

6. Top and finish baking: Remove the foil, sprinkle the remaining 1/2 cup of cheddar cheese over the top, and return to the oven uncovered for another 15 to 20 minutes (or broil for 1 to 3 minutes) until the cheese is melted, bubbly, and golden in spots.

7. Rest and serve: Remove from the oven and let rest for 5 to 10 minutes to allow the creamy sauce to thicken and settle before serving.