Pasta with Sausage, Onions and Lettuce

Cook pasta according to package directions. Drain, reserving 1 cup pasta cooking water and keep warm.

In a large skillet, cook sausage over medium heat, breaking up meat into small chunks. When almost done, add onions and cook, stirring frequently, until the onions start to turn translucent. Add the wine and continue to cook until almost all the liquid is gone. Taste for seasoning, stir in the butter.

Combine the pasta with the cooked sausage and lettuce and toss. The lettuce will wilt slightly. Add enough reserved pasta water to make a light sauce that coats the pasta. Serve with Parmesan on the side.