Some of the best grub in the South can be found at small roadside shacks and even gas stations. Rick’s Express (3085 Hwy. 1 S.; 662-378-3811) at the Citgo in Greenville, Mississippi, has stellar tamales, and Feliciana Seafood Market and Deli (7555 U.S. Hwy. 61; 225-635-4279) at the Exxon in St. Francisville, Louisiana, sells fresh-boiled seafood and the best fried chicken in town. Service stations off smaller roads are more likely to have quality food than those off major interstates. Look for dilapidated quarters, old-school Coca-Cola posters, and local license plates in the parking lot.