This traditional Italian dish is originally made with veal. Turkey is the next best thing and this actually tastes and looks quite fancy. You can make everything ahead of time but ONLY assemble at the last minute. Its just great to serve at buffets, you'd never imagine a can of tuna could be transformed to such heights! Serve with lots of salad and tomatoes and some cold new potatoes. The fresh herbs in the broth are essential as are the capers and the anchovies in the sauce (which you wont really taste) Great stuff!