I pre-assembled a chicken divan casserole yesterday, sprinkling sharp cheddar cheese and bread crumbs on top as directed in the recipeIt's been refrigerated over nightNow I need to heat the casserole and am afraid I'm going to burn the cheese since I have to cook it longer than the recipe calls for since it's so cold from refrigerationIt's in a disposable aluminum pan since it's for a pot luck tonightAny tricks?
Cover with aluminum foilcover loosely with aluminum foil so you have a gap between the cheese and the foilYou don't want the cheese to stick to the foilFoil and saran wrap is a common trick that caterers use, but I too think that the saran wrap will melt.