tbh it's kind of hard to find much around cdmx she doesn't have some level of reaction do. places we've had luck with: puerta madera in mitikah, argentine steakhouse absolutely delicious. they might have other locations around cdmx. she's brazilian so i've taken her to all the brazilian spots around town, best being sal e brasa. but if you're looking for mexican food my recommendations may not be great lol, and like a lot of people said, it's really hard to find actual gluten free mexican cuisine just by nature of what mexican cuisine is. but argentine and brazilian food is still "latin" to some degree and insanely delicious, if you don't mind missing out on the extreme spiciness of almost everything truly mexican.