Hey, Mr Pickle... what a brilliant idea ! As a veggie too, I simply only offer veggie food but I am still cautious when eating out. An *ahem* veggie friend of mine (she calls herself a veggie but still eats fish, hence my use of *ahem*..lol) put on a buffet when she got married but since she included fish on the table, a lot of us were very confused. I still had to ask mates to test taste stuff for me to find out what it contained - it's very hard to see inside samosas, pastries etc !
Anyway, the point of my reply here is to mention to Lucydog that veggies (generally) don't eat:- meat and fish, whilst vegans (generally) don't eat:- meat, fish, dairy produce and eggs.
I don't like those *pretend* meats etc (Quorn, textured veg protein etc) because they taste like meat and I don't know many veggies in the UK who like them either.