Had a great meal on a beautiful courtyard at: Della Santina's Trattoria -just off the plaza at 133 E. Napa St., Sonoma.
While in Sonoma be sure to buy some dry jack at Vella Cheese Company, 315 Second Street East, Sonoma, CA.
Love Tra Vigne, but spouse says we've gotta try someplace else next trip to wine country. Lagniappe: Merryvale tasting room next door is open later than most tasting rooms.
Never been to Bistro Don Giovanni despite repeated encouragement from tasting room staff - maybe I'll take spouse...
I like to buy olives, meats, cheeses & bottled water at Oakville Grocery or Dean & Delucca and snack between stops rather than "do lunch".
For a wild!! ride try the Oakville Grade over the mountains separating Napa & Sonoma vallies. It ends at the Oakville Grocery on Hwy 29.