SF - LA US 1

I know there is a big landslide in Monterey, but still, I have already booked everything for a late September, early October road trip SF ---> LA along US 1. Looking for recommendations of "not-to-miss" restaurants/eateries/food trucks along the way. Don't forget San Francisco and Los Angeles either, as we can sure use some good advice on where to eat in these two cities. No restrictions on food, we are omnivores, but I suppose seafood would be a special thing since the route is so close to the sea? BBQ will work just as well. Thanks!