Overview: Bagel Street Grill (Plainsboro Township, N.J.) • The Bun Shop (Los Angeles, Calif.) • The Kitchen (Portsmouth, N.H.) This trip, Guy Fieri's pickin' up everything from burgers to buns to bagels. Near Princeton, a world-class bagel shop spicin' up their specialty and toppin' things off with Jersey's famous pork roll. In L.A., a Koreatown favorite loadin' up Asian buns and a unique bacon-corn bar dish. And in New Hampshire, an amped-up deli servin' lights-out lamb burgers and righteous ribs.