Just as a note for anyone cooking for vegetarian guests, normal parmesan isn't vegetarian (only the stuff that is particularly labelled as such, generally sold in health food shops etc). It does depend on how strict the vegetarian is (for myself, I would never buy parmesan, but a little sprinkle in a dish cooked at a friends house with ingredients that would be bought whether or not I was there, I wouldn't cause a scene)

__________________