Every legend has a humble beginning. Before the over 21 stores across the Chicagoland market, before the famous jingle, before the Express Catering packs that feed thousands, there was a trailer. A small, unassuming trailer parked at 80th and Harlem in Bridgeview. That is where John and Belva Brown opened their first location in 1949. They had no dining room. No drive-through. No corporate...