My aunties used to make this, and I thought the recipe was lost forever. Luckily, I found it, and it tastes even better than I remember

2 cups cooked chicken, shredded
1 package (16 ounces) frozen pierogis
1 (8-ounce) block of cream cheese, softened
1 cup sour cream
1 packet ranch seasoning mix
1 cup shredded cheddar cheese
1/2 cup cooked and crumbled bacon
1/2 cup chopped green onions
1/2 teaspoon garlic powder
1/2 teaspoon onion powder
Salt and pepper to taste