Place frozen burritos in bottom of baking dish.  Pour enchilada sauce over the burritos, then green chiles and olives.  Cover with the cheese.  Place foil over the dish and bake at 350 degrees for 35-40 minutes.  Remove foil last 10 minutes for cheese to brown.  Your family will think you went to a lot of trouble!  So easy, and so good.  You can use beef, cheese or bean burritos or a combination of each.