This list is for restaurants between the new Mercedes-Benz stadium (right next door to the now-gone GA Dome) and the Hyatt Atlanta.
http://atlantarestaurants.blog.ajc.com/2017/01/10/11-restaurants-and-bars-to-eat-and-drink-at-around-the-georgia-dome/ There's also a link on the same page to cheap lunches in the downtown area. Most of the listings have a website for more info.