Mexico - Looking for All-Inclusive with good Mexican food

Subject line says it all. I'm not usually an AI traveler, but going with people who seem to think this is a good idea. We're UK-based, but love authentic Mexican food (have traveled throughout Mexico fairly widely). I can't imagine spending time somewhere there with bad food, particularly bad Mexican. Any suggestions?

Subject line says it all. I'm not usually an AI traveler, but going with people who seem to think this is a good idea. We're UK-based, but love authentic Mexican food (have traveled throughout Mexico fairly widely). I can't imagine spending time somewhere there with bad food, particularly bad Mexican. Any suggestions?

Any particular city in mind?

Any particular city in mind?

Not necessarily. This is a trip visiting with friends, and mostly planned as a lazy trip, rather than any sightseeing or external activities necessary.

Iberostar resorts offer very good food and accommodations.