First of all, looking at the reviews for Osteria da Nico on Tripadvisor, regrettably you fell prey to a tourist trap.
Regarding your question on pricing by weight: such is typical for foods such as meat (e.g. a steak) or especially seasonal fish but very untypical for regular courses (such as e.g. a Pizza). You can find the menu of a reputable Italian restaurant here (no affiliation) and will see that only T-bone steak and fresh fish are priced per 100g. I have encountered such pricing not only in Italy but all over the world.
Credit:stackoverflow.com‘
5 Mar, 2024
4 Mar, 2024
4 Mar, 2024