Mercedes...Hair of the Dog Cantina has been treating the Bay Area since 1967. The Heart of Mexico in the heart of the Financial District. Located on one of San Francisco's wonderful, hidden alleys, Mercedes is a popular and insider Mexican Restaurant serving the local business lunch crowds and those who stumble upon us. Mercedes is the perfect lunch spot for those with weekly 9 to 5 jobs. Bring back the idea of martini lunches by sharing a refreshing and rejunvenating midday pitcher of margaritas with friends before teetering back to the office. Sit at the bar and enjoy the warm summer breeze that blows in through the open doors and windows, or sit outside and indulge in their famous guacamole while putting some color in your cheeks. We are also available for catering and private parties mornings, late afternoons and evenings, every weekend.