Eating Gluten-Free in San Francisco - In N Out Burger
In-N-Out Burger
http://www.in-n-out.com/
333 Jefferson Street (Fisherman's Wharf Area)
I ordered my burger Protein Style, which means no bun, but wrapped in a large lettuce leaf.
I also had french fries. They are cut right there at the restaurant. Since there are no other fried items, the fries are gluten free!
Love this place!