I received the following from a very nice lady at Ortega:
The Ortega Taco Seasoning and Ortega Hot & Spicy Seasoning Mixes are gluten free.
The Ortega Chipotle, Fajita, Chile and Burrito Seasoning Mixes all contain gluten.
Maltodextrin functions as a bulking agent. It is made by converting cornstarch to simple sugars, primarily glucose.
This email contradicts this post I referenced that states all Ortega products are gluten free. They are NOT all gluten free, so please double check yourself before you wreck yourself.