Riva Cucina 800 Heinz Ave./7th St. Situated way out in a business park in southwest Berkeley, this contemporary Italian restaurant operates inside a vintage brick building. It has high ceilings, polished wood floors, and heavy drapes dividing the space into two rooms, and an outdoor area is inviting in good weather. Try the eggplant or housemade Italian sausage panino, the excellent execution of pasta al nero (squid-ink pasta topped with squid, scallops, and prawns), or the delicious tagliatelle Bolognese with traditional pork-beef-tomato ragu, and save room for the heavenly panna cotta. Service is attentive.