The patroness of Tassarolo is the Madonnina di sant'Ambrogio, celebrated on the second Sunday of September.
The patronal feast includes a religious service with a procession of the Confraternities. On 16 August the feast of San Rocco is celebrated, with religious celebrations and a food festival on the preceding or following days, with ravioli, tagliatelle and other specialities typical of the area. The municipality also holds the Chiesa di San Nicolao, the Castello di Tassarolo and the church of San Defendente.