This trip, Guy Fieri's diggin' in diner style! First, anold-school Atlanta spot is still serving up savory Southerncomfort with mighty mac 'n cheese and meatloaf with collardgreens. Then, a San Antonio staple known for their killerbreakfast is dishing out a real-deal brisket hash with salsaverde, and in Scottsdale, Ariz., a scratch-made eatery witha southwest kick is plating a supreme breakfast burrito.