Warm Pasta Salad with Smoked Duck and Radicchio

This is a dish and method that I invented for fast lunches at Stars. It uses up odds and ends, and as with the cold pasta salad, there is no limit to the possible variations. Everything can be prepared beforehand, even the pasta, which you cook and treat as in the previous recipe, then reheat in boiling water. You can, of course, cook the pasta from the dry state just for this dish, and by the time it is done, all the other ingredients will be assembled and heated in a bowl over the pasta w