Back in the ’70s I lived in large apartment building in San Francisco, in the corner of Gough and Market. At least once a week, my parents and I would walk up to the supermarket several blocks away. There were a couple of things I often took notice of along the way–the Old Mint Building and a mom and pop Vietnamese sandwich dive where from about 11 until 2pm people would line up to get their sandwich fix. I had no idea what the sandwiches were called at the time, but I do recall a few ingredients that stuck to my mind: shredded lettuce, carrots, cucumber, salt, pepper and a well-seasoned meat, either beef, pork or chicken. It was seriously the most satisfying sandwiches I ever had.