Santa Monica is really close to Sawtelle Blvd., a relatively recent hub of affordable Japanese (and lately, Korean, Taiwanese, etc.) restaurants. Foremost among them is still
Tsujita, whose ramen and tsukemen are still unmatched, I think. Across the street,
Sushi Tsujita has great sushi -- come early on a weekday to score one of their $18 chirashi lunch bowls (only 15 available each day). A ridiculous price for a large variety of immaculately fresh fish.
Also in the neighborhood,
Balconi makes excellent coffee, although truth be told, I'm addicted to their almond lattes (and I generally abhor flavored coffee drinks). Next door,
Artelice Patisserie makes desserts that are truly delicious in addition to being Instagram bait.
There's lots of other good stuff in the neighborhood (e.g.,
The Korean Mkt.'s "KBBQ Dip" is a good sandwich that would be a great sandwich if they left off the tons of mayo) -- definitely bears investigating, if you have time.
More Japanese: Although West Hollywood is a bit farther from Santa Monica,
Aburiya Raku is not to be missed. Everything we had there (including the famous homemade tofu) was kind of mind-blowing.
Taco trucks: Guerilla Tacos, for sure. Check the website for the weekly menu. Not cheap, but this is basically high-end dining, albeit sitting on a curb. Try
Kogi too, if you haven't. Hell, try it if you have, too. It holds up.
You didn't ask about Thai. Thai Town is even farther than WeHo, but you really should try to get there. Definitely one of the region's strong suits. Ask if you want specific recs.
Venice is just south of Santa Monica; depending on where you are, you may even be able to walk there. Gjelina is great, but it's hard to get into and a bit of a scene. Instead, why not try one of
Gjusta's damn tasty sandwiches or smoked fish platters? I'm particularly fond of the shaved prime rib sandwich; my gf proclaimed the tuna conserva the best tuna sandwich she's ever had, and it's hard to argue with her. (No, seriously, arguing with her is pretty rough. She tends to go for the jugular right away.
) The house-smoked fish is also terrific, as are the salads, baked goods, and entrees. These guys can do no wrong, as far as I'm concerned.
Right, downtown. Kill all the birds with one stone by going to the
Grand Central Market. Walk up to Villa Moreliana for a free sample of one of their awesome carnitas tacos; you will then be seized by an overpowering meatlust that will impel you to buy many carnitas tacos, with many different cuts of meat. Resist it and only get one, or you will not be able to eat anything else for a while -- these suckers are huge.
Other things to try at the market: Belcampo for great burgers; DTLA Cheese for cheesy sandwiches (grilled and otherwise); Wexler's for traditional Jewish deli specialties; Eggslut for eggy things. Probably forgetting a ton of worthy stuff. Explore.