35-year-old left the U.S. for India 13 years ago to open a Southern California-style burrito restaurant: 'I never felt like quitting'

For part of his study abroad trip to India in 2010 Bert Mueller stayed with a host family in Jaipur. Mueller and some of his classmates who were also studying abroad brought their respective families food from their home countries. "They didn't like it very much," Mueller says of the food he…