1Heat oven to 425°F. Spray 8-inch square (2-quart) glass baking dish with cooking spray. In large bowl, mix chicken, frozen vegetables and Alfredo sauce until well mixed. Spoon into baking dish.
2Place pastry sheet on top of chicken mixture, or use cookie cutter to cut pastry into shapes before placing on top of chicken mixture.
3Bake 20 to 25 minutes or until pastry is golden brown.