The Ringling Brothers and Barnum & Bailey Circus has been providing a mobile feast on a train since 1872, when the P.T. Barnum first put his circus entertainment on the rails. According to the Nation's Restaurant News, Ringling Brothers has two railroad routed shows, each running a mile-long train with about forty passenger cars and twenty freight cars. The train's mobile food car is responsible for feeding at any given time between 270 and 350 performers, from areas as far-flung and disparate as Morocco and China.
Michael Vaughn, the head chef, has to feed them 24/7 when the show is on the road. His train based operation has recently split-off its own food truck, Pie Car Jr., that moves to the tent for staff food service before, during and after circuses. They serve in excess of 2,500 meals a week.
He has some advice from his years of mobile operations experience for food truck operators, check it out here at the Nation's Restaurant News