One of the few items missing from Pho Hoa's menu was banh mi, the Vietnamese hero available here in a half-dozen versions. Lu's also offers a shelf of sweet soupy desserts ($1.50 each), though unhelpfully all are labeled "sugar, bean, coconut milk"; this one is a tide pool of not readily identifiable ingredients plus two types of seaweed. I enjoyed it, but I also enjoy all the sights and smells of beachcombing.
Lu's Sandwich Shop
15 Beach St., Boston
