America's Taco Shop has several locations throughout Chase Field. I visited one on the 3rd floor, which was nice because there was no line and my food was ready in about a minute.
As for the food... well. It was better than the tacos served at Gila River Arena during Coyotes games, but just a tad better than mediocre. It had a timid flavor, and the green sauce that came along with it had a better sweet/spicy kick. The tortillas tasted like something from the grocery store and were completely splitting apart. I was glad I thought to grab a fork and some napkins.
It was edible though not very filling. I have never been to one of their full restaurant locations and now I really have no interest in doing so.