For years, Maira Perez thought to be healthy she had to eat salad -- and certainly not the food her grandparents and parents grew up eating in Mexico. Even her doctor once suggested she "slow down on the tortillas," she recalls, as they discussed managing her weight. After a string of short-lived and frustrating diets, the CSU East Bay student found the inspiration she needed in professor Luz Calvo's ethnic studies course, which gave her a new, healthier take on traditional Mexican food, inspiring her to cook "the tamales, the beans, the fresh tortillas, nopales -- the things we thought...