The Jamaica Plain husband-wife team Tom and Lisa Smith opened the BBQsmith food truck last summer, with Tom bringing experience from such hot spots as Formaggio Kitchen and Hungry Mother. They chose barbecue for its mass appeal. “Oh my God, that looks so good,” a couple next to us at the SoWa Open Market exclaims as the “Slawich” ($6) arrives on a bun, heaped with smoked chicken, coleslaw, garlic pickles, and barbecue sauce. Unfortunately, the taste doesn’t live up to the eye test, but the barbecue pulled pork sandwich ($6), the most popular item, exceeds all expectations. It’s topped with soft onions, garlic pickles, and sauce. The surprise hit is the veggie taco ($3), which was created by one of the truck’s regulars and features a corn tortilla with Dighton’s Buckle Farm greens, beans, smoked cheese, cilantro, roasted tomato salsa, pickled cabbage, and avocado-lime cream. Sure, it’s not typical barbecue fare, but when you’re lured to this truck with a vegetarian in the mix, it’s a godsend.