Are you there the whole day? Specifically which areas are you going to be in?
If you've only got one day I would recommend;
On the go breakfast - Egg Slut
Brunch - Gjelina
Lunch/Dinner - Bottega Louie (as stated above, their desserts are pretty legit too - grab a few for the lady friend/to go!)
Dinner - Kang Ho-dong Baekjong (Favorite KBBQ place i've been to so far)
If you're looking for something a bit cheaper, if you're in the area I would recommend 'Sapp Coffee Shop' for lunch or something, legitttt thai/asian food for really cheap. There's also things like Roscoe's chicken and waffles and Umami burger that we don't have locally that are worth giving a try!
Also, if you're a fan of Uni I really liked the uni dishes & lobster roll at EMC seafood.
Makes me miss LA