A classic Italian alimentari (deli), Volpetti in the Testaccio area offers an overwhelming selection of meats, breads, and cheeses. The metal shelves are lined with various jars of oils, homemade pasta casalinga, and jams, while the deli cases are packed with various raw and cured meats. The artisanal cheeses alone range from familiar mozzarella to little-known, lemon-infused varieties from Sicily (don't be afraid to ask for samples). Pack a picnic basket with Volpetti's Italian wine, olive oil-covered focaccia, and prosciutto, which is sliced by hand. For lunch on-site, visit the self-service pizzeria or salad bar and dine at one of the small tables.