This casual spot happens to serve some of the best Northern Italian food on the Upper East Side, including fresh pastas like pappardelle with duck ragù and ravioli filled with spinach and ricotta. Main courses -- including potato-crusted salmon with caper sauce on sautéed vegetables -- leave regulars satisfied. Chef-owner Luca Marcato wanders the clean, sparse restaurant when he's not making Italian magic in the kitchen. Subway: 4, 5, 6 to 86th St.