At this unassuming trattoria down the street from Piazza Trilussa, Fabrizio has turned this space into the seafood-focused sibling to his carnivores' heaven, Da Fabrizio, around the corner. Although meat and fish get equal billing on this menu, and the fillet of Danish beef is delicious, it's the briny temptations you'll succumb to. Appetizers like sea scallops gratineéd with bread crumbs in a squid-ink sauce are plump, juicy, and an unusual, welcome preparation. Or try the mixed selection of pesce crudo (raw seafood), which could include sea bass carpaccio, scampi, salmon marinated in citrus with pink peppercorns, and octopus salad. Pastas range from the traditional, including a great version of spaghetti with mussels, to the strozzapreti (literally, "priest stranglers") with clams, broccoli, and a healthy dose of garlic. The outdoor dining area, with a vine-covered trellis overhead, is a lovely spot to spend an evening before heading for a nightcap in one of Trastevere's many watering holes.