Chef Giovanni Pilu says fish is traditionally cooked whole in Sardinia as this results in a more flavoursome and moist dish. Snapper is a good fish to cook whole as there aren’t too many small bones and the flesh comes away easily in large pieces.Chef Giovanni Pilu says fish is traditionally cooked whole in Sardinia as this results in a more flavoursome and moist dish. Snapper is a good fish to cook whole as there aren’t too many small bones and the flesh comes away easily in large pieces.