I'm heading to San Diego for the next couple of days, staying in Old Town and would like some recs for moderate/reasonably priced but good food in that area and/or in downtown. gaslamp since we'll be out that way too. We're both foodies and are open to different cuisine types, Asian, Mexican, etc. - and we're interested in more casual rather than fine dining options. Not really interested in nightlife spots, but we'll go to one if the food is great. Food trucks are also an option if there are some good ones in SD, but we're there for a convention and can't really chase them too far.