About 8 years ago I was in Venice at about this time of year (late November). The restaurants all served a special soup/stew thing as a starter made, I think, with lamb and veg, sort of like a light Scotch Broth. I was told that it is only served at that time of year and is a tribute to the end of the plague in the 17th century (and, I think, the founding of Santa Maria de la Salute). This dish was never on the menu and only the Venetians seemed to know about it. A waiter in one restaurant was very surprised that I asked for it. Does anyone know what this dish is ???