When you think about food in Napa Valley, it's hard not to immediately think of Thomas Keller and the many restaurants he has in Yountville. After deciding we were not ready to spend the money on an evening at French Laundry (too much wine to buy and other food to eat!), we made reservations at Keller's ad hoc. ad hoc started as a temporary restaurant for the purposes of experimenting with different foods and dishes, but after such an amazing response from the guests, ad hoc became a permanent fixture in Yountville. Open Thursday through Monday, there is a set four course tasting menu (about $50/person) that changes daily with some optional supplemental dishes (about $15). One constant is the fried chicken served on Mondays - while we did not get to indulge, from what I hear it's pretty outstanding!
After being seated, our server quickly brought us some bread. I will say, I was not impressed with our server - I felt a bit rushed. While the menu is a given, a little extra time and explanation would have gone a long way. When we ordered, he basically only wanted to know if we wanted the wine pairing (I did) and if we wanted the supplemental side dish that evening (we did) and he was gone. The rest of the staff - the runners and bussers - did not give off this same feeling and were more accommodating.