i cannot capture it any better than has already been written here, but the delicateness of the crunch is immensely satisfying:
https://www.sfchronicle.com/food/article/This-Oakland-home-restaurant-flies-in-airy-16993154.php
although their calling card item is their tostadas, i think their tacos dorados are even better - similar super light and delicate crisp. the picadillo (pork+beef) filling is the best one out of the three tacos dorados options (ranking: 1-picadillo, 2-potato, 3-beans).
the torta ahogada is also very good. still need to try the pozoles
the address can be found in their instagram (https://www.instagram.com/cenaduria.elvira/) - their setup is also very nice (but in a residential courtyard)