Baking Instructions: Preheat over to 400F. Remove plastic lid and cover with foil. Approximate bake time 60-90 minutes (Frozen) The casserole is done when the perogie dough is cooked through and it is a nice golden brown on top. For a golden brown topping, take the foil off for the last 15 minutes of bake time. Over cooked is better than undercooked!!