t’s easy to pretend you’re in Tuscany when you step into this upscale Redwood Square enoteca and ristoranti run by Cheryl Principato and chef Rudy Duran, who put a premium on taking care of their patrons. On a recent Friday night at prime time for dinner, we lingered over a melts-in-the-mouth fish special, shared bites of delicious veal, sopped our soup with aromatic bread, and enjoyed a hearty pasta-sausage dish, though we were very tempted to order the salmon and the pork loin. A bottle of one of C’era Una Volta’s fine Italian wines, good service from a server whose Italian seemed impeccable, and nonstop conversation with our companions made for memorable evening. Such a pleasurable dining experience means return visits for lunch and/or brunch are definitely on the horizon. Closed Mon. Dinner only on Tue.-Thu.; serves lunch, brunch, dinner Fri.-Sun.