1Heat oven to 400°F. Spray 9-inch glass pie plate or 8-inch square (2-quart) glass baking dish with cooking spray.
2In large bowl, mix chicken, corn, olives, onion, chiles and cheese. Spoon into pie plate. In medium bowl, mix Bisquick mix, eggs, milk, salt and pepper with whisk until tiny lumps remain. Pour evenly over chicken mixture.
3Bake 28 to 30 minutes or until knife inserted in center comes out clean. Serve with salsa, guacamole and sour cream.