Velvet Cantina   Its title and appearance conjures Barbary Coast-era decadence.  The Velvet Cantina is only about seven years old, but it feels thoroughly dyed-in-the-wool, a seemingly eternal fixture on its corner, 23rd and Bartlett Streets in the Mission District, a residential spot just

  People can often be weirded out by street grub, and the location thereof will probably make or break the decision to consume it.  That’s why it’s an especially uphill battle for Antojitos San Miguel to pull in prospective customers.  Although, they have commuters breezing by them all day and