Prep Time: 20
Cook Time: 15
Serves: Serves: 4
Melt 2 tablespoons butter in medium saucepan. Add flour and cook over low heat 2 minutes, stirring constantly. Whisk in milk. Stir over medium heat until thickened. Stir in cheese, basil, salt and pepper; set aside.
Heat remaining butter and oil in large skillet. Add chicken and cook over medium heat 5 minutes, stirring constantly until cooked through. Stir chicken into cheese sauce.
Cook green onions 2 minutes in same skillet. Add chopped vegetables; cook 5 minutes or until crisp-tender. Combine with cheese sauce. Heat through and pour over cooked pasta. Serve with additional Parmesan cheese.