La Cena di Pitagora is a vegan restaurant and B&B known for its four-course tasting menu featuring seasonal vegetables, handcrafted pasta, gnocchetti, and unique vegetable "cheeses." Dishes include risottos with dried fruits and aromatic herbs, and desserts like pies and apple fritters. Guests can dine indoors during winter or enjoy the peaceful courtyard garden in summer, with meals priced around €25-33 for the tasting experience. The accommodations are simple yet comfortable, decorated with vintage furniture, and surrounded by a vibrant garden with herbs used in the kitchen, providing a tranquil and authentic setting near medieval walls.