Preparation
In a medium bowl, mix stuffing, melted margarine and 1 1/4 cups broth. In another bowl, Mix chicken, 3/4 cup broth, onions, chives, celery, mayonnaise and salt.
Spread half of the stuffing in a 13x9x2 inch baking dish treated with nonstick spray. Spread chicken mixture over stuffing. Cover with remaining stuffing. Whisk eggs, milk, and soup in a large bowl. Pour sauce evenly over the stuffing. Cover dish with foil and freeze. Put cheese in a small freezer bag, and attach it to the dish.
To prepare for serving, thaw cheese and chicken dish. Bake covered in a preheated 325 degree oven for 30 minutes. Remove foil, sprinkle with cheese, and continue to bake uncovered for 10 minutes.