1Heat oven to 400°F. In large bowl, mix chicken, pasta sauce and vegetables. Pour into ungreased 9-inch square pan.
2In small bowl, mix Bisquick mix, Parmesan cheese and butter with fork or pastry blender until crumbly. Stir in egg. Sprinkle over chicken mixture.
3Bake 20 to 22 minutes or until topping is light golden brown.