One of the first things a Celiac has to do is learn to speak to chefs.  "Secret ingredients" will become a nightmare for you if you don't.  Most are okay with it, they don't have to disclose their secrets, just tell you whether or not there is Gluten in the food they serve (some places don't know honestly what is in their food...so be careful of that!)...

http://www.celiac.org is a helpful site.