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I'm sorry to say that the meat items at Taco Bell are not GF.  Here in
California (maybe other parts of the country as well), grocery stores now
carry Taco Bell seasoning packets for ground beef.  I just read the
ingredients on one tonight, and it contains wheat flour, thereby making it
non-GF.  Believe me, I understand your frustration.  I have only been GF
for about 1 month, and it's extremely hard.  Can't even find canned soup
without either wheat flour or MSG.  Does anyone know of any that doesn't
cost 4 times the normal amount for a can of soup?