For authentic Mexican dishes try the Taqueria y Pupuseria Rosita on Stone Mountain Highway. The quaint little restaurant is in the Home Depot shopping center. Don't be confused: the sign at the shopping center entrance says Pupuseria and the one above the business says Rosita, but they are the same place. In addition to traditional dishes including carne asada and pupusas de queso y chicharron, Rosita's also offers cell phones and computer repairs. Bring your laptop and phone and get an upgrade while you eat. If you are planning to go there for lunch you might want to call ahead to place your order, just to make sure you don't get stuck in the crowd.