Welcome to Knoxville, Whataburger! The Texas-based fast food restaurant opened its first Knoxville location this morning at 1830 Cumberland Ave. on the Strip, just a short walk from the University of Tennessee. It's on the lower level of the TENN student apartments, the same building as Raising Cane's. Whataburger fans lined up down the block to get their first taste of the famous made-to-order burgers. Many showed up in their Whataburger shirts, socks and hats to celebrate the momentous occasio