Scalloped Chicken

1/2 loaf white bread, cubed
1 1/2 cup cracker crumbs, divided
3 cup chicken broth
3 slightly beaten eggs
1 tsp. salt
3/4 cup diced celery
2 tbsp. chopped onion
3 cup cubed cooked chicken
1 8-oz. can mushrooms
1 tbsp. butter or margarine

Combine bread and 1 cup crumbs. Stir in broth, eggs, salt, celer, onion, chicken, and mushrooms. Spoon into greased 2 quart casserole. Brown remaining crumbs and sprinkle over casserole. Bake at 350 degrees for one hour.