This trip, Guy Fieri's pickin' up everything from burgers to buns to bagels. In Portsmouth, N.H., an amped-up deli serving up lights-out lamb burgers and righteous ribs. In Los Angeles, a Koreatown favorite loadin' up Asian buns and a unique bacon-corn bar dish. And in Plainsboro, N.J., a world-class bagel shop spicing up their specialty and topping things off with Jersey's famous pork roll.