Ruth's Diner (Salt Lake City, Utah) • O'Rourke's Diner (Middletown, Conn.) • Parasol's Restaurant & Bar (New Orleans, La.)Guy Fieri hits some spots viewers recommended including: In Salt Lake City, a 79-year-old diner serving Mile High biscuits and gravy; in New Orleans, a neighborhood dive puttin' out roast beef po' boys; And in Middletown, CT., a historic diner serving unexpected favorites that was rebuilt after a fire.