Technically you can't compare Chipotle and Panera with McDonalds, Taco Bell etc. because the former are categorized as "fast/casual." I have eaten at Chick-Fil-A a couple of times; there isn't one near me, though and I while I think it's very good, particularly in the category of fast food, it's not exactly inexpensive, either.

I really like Chipotle, though it certainly doesn't fall into the true category of Mexican food any more than Taco Bell. I'd rather think it is "Mexican inspired" or something like that. Aklim, you might want to give it a try, they have a few things on the menu that are pretty innocuous and, for the most part, they are a pretty healthy place to eat.