Pasta Shells with Portobello Mushrooms, Asparagus, and Boursin Sauce

1. In a large frying pan, melt the butter with the oil over moderate heat. Add the mushrooms and salt and cook, stirring occasionally, until the mushrooms are tender and well browned, about 8 minutes. Add the chicken broth and Boursin cheese and bring to a simmer while stirring.
2. Snap the tough ends off the asparagus and discard them. Cut the spears into 1/2-inch pieces. In a large pot of boiling, salted water, cook the pasta until almost done, about 6 minutes. Add the asparagus and cook until it and the pasta are just done, about 4 minutes longer. Drain. Toss with the mushrooms and sauce.

Yield: 4 servings