Savory Polish Kielbasa and Potato Pierogi Casserole with Cheese - Recipes by Lena

Ingredients

• 16 oz package frozen potato and cheese pierogies
• 1 tablespoon olive oil
• 1 medium yellow onion, thinly sliced
• 14 oz kielbasa sausage, sliced into 1/2-inch pieces
• 1/2 cup sour cream
• 1/2 cup cream cheese, softened
• 1/4 cup whole milk
• 1 teaspoon garlic powder
• 1/2 teaspoon black pepper
• 1/2 teaspoon paprika (optional)
• 1 cup shredded cheddar cheese
• 2 tablespoons chopped fresh parsley (for garnish)