Plaza Food Hall Specialty food vendors include famed cupcake maker Billy’s Bakery, hipster favorite No. 7 Sub, Olma Caviar Boutique & Bar, open-faced-sandwich maker Tartinery, and the new Epicerie Boulud. Lunch Pick: The Happy Pilgrim at No. 7 Sub. Filled turkey, sweet potatoes, bacon, mozzarella, cranberry sauce, and pickled jalapeños, it’s Thanksgiving on a sub.