I need some advice and help here.... As I've never done this but have read that many of you do use plastic wrap under aluminum foil and putting it right in the oven. Can I do that? I'm having a major party here and am working today on the prep for a lot of my courses (it's an Italian Festival so you know there's a lot of courses!!) and I want to know if I can wrap my dishes in wrap before the aluminum foil? I'm using a lot of aluminum steam table bins to do the actual baking so let me know if that'll work. I've got plenty of good Costco Plastic Wrap to work with. Thanks!!!