This was one of my favorite places to go for lunch while on contract in the Ballantyne area. They have several tasty options for people of all dietary preferences. Every meal I have had at Pei Wei has been well made and not over cooked (it's amazing how many people don't know how to cook broccoli). Their tofu is great (it's amazing how many people don't know how to cook tofu).
Even during the lunch rush, they are pretty good about getting out well made orders. I have never had a problem getting back to work on time taking a lunch here and that is important. The atmosphere is rather nice nice. Dimly lit but on a nice day there is a nice amount of sun light coming in through the large windows. Plenty of seating. I never once had to wait for a table during the lunch rush.
All around Pei Wei is a solid choice for lunch in Ballantyne area. Heck, it wouldn't even be a bad spot for a date. Oh, and yes, they do server beer. Not a great selection, but they do.