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        I made the mistaken assumption from things that I've read and
people I've spoken to that Mexican food was pretty safe -  just ask for
corn tortillas and leave out the breaded stuff.
        MISTAKE!  I am learning more and more now not to ASSUME anything!
At the past 3 different Mexican restaurants I've been to, I learned that
their fajita meats were all  marinated with SOY SAUCE (even tho not
mentioned on the menu).  One restaurant, in fact, said there was not a
piece of meat anywhere in their kitchen which had not been marinated in soy
sauce.  (They finally were able to saute some shrimp for me which had
escaped the sauce.) Also, I am finding that some Mexican restaurants use
thickener in their salsa (even tho you'd expect just tomatoes).
        So- Be careful-ASK!  Don't make my mistake of assuming!

                                    Nina :)
                         '89FX3/Coupe (SAM)
                                Phoenix,  AZ