I thought the Italian custom was never to add cheese to seafood pastas. However, at a friend's Christmas Eve Feast of the Seven Fishes that I was lucky enough to be invited to, the hosts of Sicilian descent eagerly added grated cheese to capellini with calamari in a tomato sauce.
So: is no-cheese-with-seafood-pasta not as strict a rule as I thought? Or is cheese sometimes served with certain seafoods, or in certain regions of Italy, or in certain contexts?
I appreciate that a totally valid response is to do what you think tastes best, but I'm asking the question in order to understand what people's traditions are.