West LA has lots of plenty of legit Mexican food, you shouldn't be driving for it. I suggest Tacos Por Favor next time you want some in Santa Monica.
http://www.yelp.com/biz/tacos-por-favor-santa-monica
There are some things you have to drive for, like great dim sum, but the great Middle Eastern and Japanese food more than makes up for it.
Two of my favorite restaurants in the world:
http://www.yelp.com/biz/zankou-chicken-los-angeles-2
http://www.yelp.com/biz/hide-sushi-japanese-restaurant-los-a...