What can I subsitute for Aluminum foil in the oven? I am allergic to Aluminum
Oven bags will take the heat:


  The plastic used for manufacture of the oven bag must be chosen so that it will not melt at the temperature during cooking and thus spoil the food. To this end, many oven bags are formed from a special heat resistant nylon.


I'm not having any luck finding the material in a convenient roll form, but Reynolds and other manufacturers make the bags in a variety of sizes, some of which are large enough to be cut up and line your dishes and pans.