This may be too late, but...

I actually work in this area....not any public transport, unfortunately.
But in addition to Ray's (which is delish, but $$$$) there are quite a few restaurants on Powers Ferry, most of which are chains. There is an area close by off of Hwy. 41 called Vinnings that has some good places to eat and shop around (including a bike shop!) The desk clerk at your hotel can point you in the right direction!
There is also Cumberland Mall close by with the requisite food court.
This area is about 10 miles from downtown, where most of the attractions are. You'd have to take a cab if you won't have a car.
I hope you enjoy your time in Hotlanta!