Rutabegors is the original "health food" place. At least it was my first exposure when my parents started going there in the 70's They've opened a couple more since then but the original is the best because it's in downtown Fullerton in a neat old Mexican building. I'm not sure it's really considered health food by today's standards but it's similar.
Directions: Take the 91 west from the 57 to Harbor. Take Harbor about 2 or 3 miles to the first street past Commonwealth and turn right. Turn right at the next street and Rutabegors is on the right.