Step 1

Heat oil and butter in a very large skillet or saucepan over medium-high heat. Add leeks and saute until starting to become translucent, or about 5 minutes. Add mushrooms and sausage and continue to saute until mushrooms are nearly cooked through, or about 8 minutes. Add wine, and reduce for about 4 minutes.

Step 2

Meanwhile, bring a large pan of water to a boil and cook pasta as directed on the package. Reserve about 1/2 cup of the cooking water before draining.

Step 3

After the wine has reduced, turn heat to low and add Parmesan cheese and stir until melted. Add chicken sausage mixture to cooked and drained pasta, adding some of the cooking water as necessary for a light sauce to come together. Enjoy immediately.