The seeds for Mommy\u2019s B\u00e1nh M\u00ec in San Jose were sown when owner Curtis Lai joked to his mother \u2014 who was obsessively pursuing the perfect Vietnamese sandwich \u2014 she was making so many she should sell them. Little did he know she would take him at his word. \u201cShe was always saying, \u2018Try this, try this,’\u201d Lai told San Jos\u00e9 Spotlight. \u201cI told her, \u2018I\u2019ve had enough sandwiches, you should go start a food truck.\u2019 About three days later, a small trailer from Craigslist pops up in the driveway.\u201d Lai\u2019s mother, Lynn Duong, surprised him even more when she…\u00a0<\/p>\n