1.Cook Tortellini According To Package Directions. Meanwhile, In A Skillet, Saute The Onion In Butter Until Tender. Add The Peas, Mushrooms And Ham; Cook Until Mushrooms Are Tender. Stir In Cream And Pepper; Heat Through. Stir In Grated Parmesan Cheese Until Melted. 2.Drain Tortellini And Place In A Serving Dish; Add The Sauce And Toss To Coat. Sprinkle With The Shredded Parmesan Cheese If Desired.