Cook Fettuccine According To Package Directions. Meanwhile, In A Large Saucepan, Saute Sausage, Asparagus, Mushrooms, Onion, Garlic And Thyme In Oil Until Vegetables Are Tender. Combine Cornstarch And Broth Until Smooth; Stir Into Sausage Mixture. Bring To A Boil; Cook And Stir For 1-2 Minutes Or Until Thickened. Drain Pasta. Add To Sausage Mixture; Toss To Coat. Sprinkle With Parmesan Cheese.