Everyone who tries this easy baked casserole made from frozen pierogies raves about how amazing it is! This comfort food dinner recipe is loaded with chicken, bacon, Alfredo sauce, onions, mushrooms and pierogies.
Preheat oven to 350°F. Spread cooked pierogies on the bottom of a 9x13 inch casserole dish and set aside.
Add extra virgin olive oil to a skillet over medium heat. Add onions, mushrooms and garlic. Season with salt and pepper. Cook for approximately 10 minutes or until onions are softened and mushrooms are cooked.
Add Alfredo sauce to a large bowl. Add chicken, bacon, Italian seasoning and mushrooms and onion. Stir to combine. Pour on top of pierogies in casserole dish.