Thanks for the responses to my previous request for ethnic chow in SD. Below are other places I discovered during my stay.
3795 Mission Blvd
A good breakfast place with solid fare and a bit of fusion. I thought the coffee was mediocre. The banana and blueberry pancakes were good. Tasty rosemary bread and rosemary potatoes. Big portions and reasonably priced for the area.
756 Fifth Ave.
We were looking for a pseudo hole-in-the-wall in the Gaslamp, mainly because we only wanted to pay $10 for a lame meal, not >$20. Very good carnitas (crisp and tender chunks) and tortilla soup. Weird pastor, which they serve with pineapples (I've never seen this in LA). It tasted more like tandoori chicken than pork. Tasty selection of salsas and guacamole served with chips. Of course it was a bit overpriced being in the Gaslamp. But I was pleasantly surprised (specially with the carnitas), despite the feeling of being stuck in the Gaslamp trap.
La Costa de Nayarit
3695 University Ave
Very good chips and salsa, served with raw shrimp (w/ head) marinated in lime juice. The shrimp was a little overmarinated (so it was a little pasty), but had good flavor.
The fish tacos were excellent with what seemed to be homemade tortillas. Perfectly fried with good batter, but a bit too heavy on what tasted like tartar sauce.
You get 2 good-sized tacos with rice and beans. They also have Marlin tacos.
The 7 mares soup had a very tasty broth with a good dose of Mexican oregano and tons of seafood (I was unable to finish). It had some of the most tender octopus I've ever had, clams, mussels, a claw of crab, big chunks of some white fish which was overdone, and obviously 2 other organisms which I can't remember. A bit pricey at $12.
An order of guacamole comes out on a large plate, garnished witha ring of chips. It is minimalist guacamole: Chunky, not overpowered by too much lime, and slightly accented by bites into a occasional die of onion. Very good.