This trip, Guy Fieri’s digging in to stick-to-your-ribs comfort food. In Atlanta, the down-home joint cooking up righteous chicken and biscuits and house-cured lox, where he’s joined by former NFL player Jamal Lewis. Across town, the twin-brother team firing up Southern grub like brisket burger and chicken-fried ribs, where he meets up with TV host Rutledge Wood. And in Fort Collins, Colo., the funky cafe serving up vegetarian specialties like tomatillo and chickpea pizza and a savory cauliflower steak.