Creating your own Savory Pierogi Casserole with Kielbasa is simple when you follow these steps:

1. Preheat Oven: Preheat your oven to 350°F (175°C).
2. Cook Kielbasa: In a skillet over medium heat, cook the sliced kielbasa until browned. Remove and set aside.
3. Sauté Onion: In the same skillet, add the diced onion and sauté until translucent and golden.
4. Prepare the Sauce: In a bowl, mix together the sour cream, cream of mushroom soup, garlic powder, smoked paprika, salt, and pepper until well combined.
5. Layer Ingredients: In a greased 9×13-inch baking dish, layer half the frozen pierogi at the bottom. Top with half the kielbasa and half the sautéed onions.
6. Add Sauce: Pour half of the cream mixture over the first layer. Sprinkle half of the cheddar cheese on top.
7. Repeat Layers: Repeat the layers with the remaining pierogi, kielbasa, onions, cream mixture, and finish with the rest of the cheese on top.
8. Bake: Cover the dish with aluminum foil and bake for about 30 minutes. Then, remove the foil and bake for an additional 10-15 minutes or until the cheese is melted and bubbly.
9. Garnish: Remove from the oven and let it sit for a few minutes. Garnish with chopped parsley.
10. Serve and Enjoy: Slice into squares and serve warm.

By following these steps, you’ll have a delicious Savory Pierogi Casserole with Kielbasa ready to impress family and friends!