When we think about grilling, we mostly think about meat and not veggies, but master griller Steven Raichlen says there's a lot more to the world of BBQ than just protein. In his new book "How to Grill Vegetables: The New Bible for Barbecuing Vegetables over Live Fire," Raichlen explains how to smoke-roast a head of cauliflower, char a winter squash, ember-grill green beans, hay-smoke lettuce, plank grill Eggplant Parmigiana, and rotisserie brussels sprouts on the stalk. Raichlen joins Gormley to tell us more about the new book and share his tips for "green grilling."