Hotel On the Ave nabs a Serafina. Dalton-girl birthday magnet keeps to its traditions in spiffy Upper West spin-off. Italian artist inks frescos, wood beams and tile keep the space warm. Wood-burning oven grounds classic Northern Italian array. Thin-crust pies enlivened with lux ingredients like salmon caviar, truffle salt. Homemade pastas served al dente, solid secondi choices like branzino with lemon and rosemary. Upbeat soundtrack keeps the energy flowing across dining room and lounge spaces. Café for al fresco options, weather permitting.