This is another of my Mom's recipes, another favorite of mine. This dish can be covered with foil and froze until ready to use. Just pop it out of the freezer and sprinkle cheese and top. Bake for about 45 minutes at 375*
Cook Chicken until tender, shred in small chunks. Drop noodles in boiling water and cook 10 minutes or until tender and drain.
Cook onions, pepper, and celery in chicken broth until tender. Cook the vegetables in enough chicken broth to cover...this will keep them from drying out while baking. Mix chicken noodles, 3/4 of the cheese, mushroom soup and mushrooms.
Salt & Pepper to taste. Place in Baking dish and bake for 45 minutes in a 375* preheated oven. Stir occasionally. Just before serving sprinkle with remainder of cheese, returning to oven until the cheese has melted