East Calistoga
Right off of the head of scenic Silverado Trail, Solbar gives you some of the best food in the valley at reasonable prices. Solbar is part of Solage Calistoga, voted 7th best resort in the US by Travel and Leisure. It's associated spa, SpaSolage was voted as the 2nd best spa in the US by Travel & Leisure as well.
If you're looking for some wineries and tasting rooms to try, you won't be disappointed by LavaVine, Zacherle, and Silver Rose.
If you Sushi floats your boat, try out Kitani.
Wappo market is a great little market that you can count on for fresh fruits and vegetables, along with refreshing cold drinks.