cheezy chicken casserole (in the microwave)

6 slices bread crusts removed
1/2 cup mushrooms
2 cups cooked chicken cubed
1 can water chestnuts sliced
1 1/2 c cheddar cheese
1-10 1/2 oz cab cream of chicken soup
2 eggs
1 cup half and half
1/2 to 3/4 c bread crumbs

butter a 2 quart glass casserole place 3 slices of bread in dish arrange 1/2 of the chicken mushrooms and water chestnuts over bread. Add 1/3 the cheese beat eggs well add cream and blend well pour 1/2 egg mixture over chicken repeat spread soup over dish refrigerate overnight sprinkle top with bread crumbs microwave on high 2 minutes microwave at 70 percent for 15 to 18 minutes rest 5 minutes.