This trip, Guy Fieri is loadin' up on tropical flavor. In Marathon, Fla., a waterside spot serving up lobster enchiladas and lionfish rolls. In Hilo, Hawaii, a funky food truck cooking Vietnamese specialties like the bomb banh mi sandwiches and stand... (more)out spring rolls. And in Maui, a fresh-catch joint puttin' out poke and a new twist on fish tacos.