The French Laundry, the options to get a Keller experience abound. There's Bouchon Bakery and the adjacent Bouchon Bistro. And a bit farther down the road, Ad Hoc (which happens to sit right next to Redd).
Ad Hoc, originally intended as a temporary casual dining restaurant, has continued to live on as a permanent spot serving one simple four-course menu, family style, that changes every night. So, this is one for those who are ready to take their chances with what might be served. You'll likely have made a reservation in advance, but on the day of, you can check the Web site to see what your $52 will get you.
Ad Hoc was a fun experience and I think one worth trying. Having faith in the kitchen to produce a convincingly delicious meal paid off.