My recent trip to the wine country also took me to Ad Hoc for the first time. The whole experience of eating there was very nice, but I especially wanted to make note of the remarkably good salad.
Here's the description of it from the menu:
Frisee and Endive Salad
duck confit, pomelos, grapefruits, pine nuts
and whole grain mustard vinaigrette
The salad also contained big hunks of bacon. The whole combination sounded odd to me, with grapefruits and bacon together, but the overall effect was stunning, the flavors just sung together, with salty, sweet, sour, all combining deliciously. My husband, not a big salad eater, couldn't get enough of it (of course, it was a very meaty salad). Really one of the best salads I've ever had.
The entree was a spiced Hanger Steak with farro and wild rice, gold beets, and swiss chard, and was delicious. We really didn't like the dessert at all though. Banana Upside Down Cake with warm chocolate sauce and toasted peanuts. We had to order extra chocolate sauce because the cake was so dry.
We loved Ad Hoc, the casual atmosphere, the menu, and the service was fantastic. Next time I might try eating at the bar so that we could order a la carte.