Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
  12      slices        bread
   2      cups          halibut -- flaked
   1      cup           celery -- sliced thin
   1      small         onion -- chopped fine
   1      can           sliced water chestnuts
   4      ounces        canned mushrooms -- (sliced)
   2      cups          milk
   1      cup           mayonnaise
   4                    eggs -- beaten
   2      cans          cream of chicken soup
     1/2  cup           grated cheddar cheese

Preparation:

Remove crusts from bread. Cube 6 slices and spread on bottom of 9"x13" baking dish. Mix fish, celery, onion, chestnuts, mushrooms. Spread atop bread cubes, salt and pepper. Cube remaining bread and place on mixture. Mix beaten eggs, milk and mayonnaise. Pour over casserole and refrigerate overnight (covered). When ready to bake, remove from refrigerator. Cover with cream of chicken soup. Bake at 325F for 45 minutes (uncovered). Remove from oven, cover with cheese. Bake 15 minutes longer. Excellent for a potluck or crowd. Good with crab, shrimp or halibut. Source: Alaska Seafood Cookbook