Brad Miller travels to Nashville, Tenn., for hickory-smoked baby back ribs with hot, Memphis-style barbecue sauce from the Smoke Et Al food truck and owner Shane Autrey. Then he samples a pair of gooey cheese melt sandwiches from Genevieve Hardin at the What Would Cheesus Do? food truck in Denver, Colo. Finally, Brad heads south to Atlanta, Ga., where he finds the Meatballerz Truck and owner Cara DeLalla's hand-rolled meatballs stuffed inside Italian boules. For dessert, Brad gets his hands on their seasonal unicorn cake fritters.