Sandy Beall managed Pizza Huts while a freshman at the University of Tennessee to get out of fraternity house duties. It was just three years later that Sandy's boss at Pizza Hut would favor him with a nice gift: $10,000 to invest in a dream. With that, Sandy and four of his fraternity buddies pitched in to open the first Ruby Tuesday on the university campus in Knoxville, Tennessee, in 1972. Sandy was only 21 at the time. Our Ruby Tuesday potato cheese soup recipe can be served by the cup…