re: If you had one chance to eat lunch in San Diego's Gaslamp district,

Searsucker is the best restaurant in that area. Not sure what type of food you are looking for though. Bandar does a solid job. They aren't trying to reinvent the wheel, but it's good solid Persian food. La puerto is worth a stop if nothing more than the Margaritas. If you're from NOLA and eat at places like Peche and GW Fins Fairly regular I would skip Oceanaire. It's not bad but you have better in your back yard.