Venerable Central Texas barbecue restaurant Salt Lick has gotten into the food trailer business. The Driftwood restaurant has opened a trailer at the Moontower Saloon (10212 Manchaca Rd.) in deep South Austin. The truck serves a chopped beef sandwich ($11), sausage sandwich ($8), pulled pork sandwich ($11) and sloppy nachos ($12). The idea for the trailer started in 2015 when Salt Lick and Moontower teamed for a flood benefit for the Hays County Food Bank.