not exactly where or how to phrase this.
i've lived in la, san diego, spent a lot of time in the bay area and now live near sacramento.
the unique things that stand out are "mission style" burritos from the bay area, and sd's rolled tacos/ca burritos (carne asada, fries, sour cream, guac) /fish tacos.
is there a particular name or style associated with the san diego type food? it seems to be spreading out to sacramento at least in the last couple years but that's just anecdotal evidence