Jerry says, "Tommy's" and indeed. The one on Rampart (@ Beverly or so?) is the OG one. Also, if not from SoCal, In-N-Out burger. Those are iconic L.A. food.
Oh, but what of Phillipe's Original, across from Union Station, the literal birthplace of the "french dip sandwich" and still really, really good.
Pink's, for a really good, LA hotdog after waiting in line so long you can easily eat it.
Tito's Tacos, for the Los Angeles analog to San Diego's (Ro)-berto's chains of roadside taco dives.
The Apple Pan, burger joint, also dating way back and still true to the old form.
Lawry's, for a hunk of prime rib like the one your Dad dreamed of. Or, like Nick maybe.
FatBurger, also an LA creation now "around"
Baby Blues BBQ in Venice, new but so very LA in its stoke and breadth. Plan to wait for a seat.
Father's Office, for the burger. The burger. Just ask, they'll know.
Yeah, been skipping lunch. Anyway, those are a few of the famous LA joints, but the place is a metropolis: good food abounds. Hell, even in the Valley, ha ha!