My husband and I will be visitng California at the end of July for about 9 days. We'll be beginning our trip in San Francisco, then spending three days driving down the coast, and winding up in San Diego for another for days. We both love all types of food from cheap hole in the wall to upscale, etc, and want to make it a memorable food vacation. I'm looking for recommendations mostly for our drive between San Francisco and San Diego - we're staying with friends/relatives in each of those cities, so I'll mostly rely on them for suggestions there. But along the way, we'll be making overnight stops in Carmel/Monterey and Santa Barbara. What are the "can't be missed" places in these cities, or points in between? Any type of food/price range is fine. Thanks!