One of our family traditions is to have LOTS of different fish dishes to serve on Christmas Eve! This is a common tradition in many Italian households. It's called "Feast of the Seven Fishes". In my family we don't make all seven fish dishes...four or five is our limit! We usually make shrimp, scallops, sea bass, octopus, crab and/or calamari.
Below is my photo and recipe for fried calamari. We serve it with marinara sauce for dipping.