Viva Pizza Restaurant, San Francisco

###In Focus: Viva Pizza * **Neighborhood:** North Beach * **Specialties:** pasta, seafood entrees, pizzas, and organic flatbreads * **Must-try dish:** three-cheese ravioli * **Dish most likely to require you have a #2 pencil:** the S.A.T. pasta with spicy sausage, artichokes, and tomatoes * **Number of vegetarian items:** more than 25 * **The ingredient the chefs are most fanatical about:** extra virgin olive oil, specifically Perito’s brand * **The vibe:** rustic and charming, with sepia-toned wall murals and autumn leaves hanging from the ceiling * **Best reason to stay up late:** The restaurant doesn’t close until 3 a.m. on Friday and Saturday.