El Mesón Sándwiches - Old San Juan

El Mesón Sándwiches began in Aguadilla in 1972 and grew into Puerto Rico’s best-known homegrown fast-casual chain. This Old San Juan branch serves the brand’s made-to-order sandwiches, all-day breakfast selections, coffee, wraps, soups, and salads from a colorful historic corner near Plaza de Armas. Branch schedules and menu availability can change, so confirm current hours before a time-sensitive visit.