Chicken Yum-Yum Casserole
["2 (6 oz.) jars chicken or equal amount fresh cooked chicken (1 1/2 c. or more)", "3/4 c. mayonnaise", "1 Tbsp. lemon juice", "1 can cream of chicken soup", "1 can mushrooms", "2 c. chopped celery", "1 Tbsp. chopped onion", "1/2 c. sliced water chestnuts", "3 hard-cooked eggs, chopped (optional)", "1 1/2 c. potato chips, crushed"]
["Mix all ingredients together except potato chips.", "Put in baking dish (greased).", "Cover with crushed potato chips.", "Bake 45 minutes to 1 hour at 350\u00b0."]
["chicken", "mayonnaise", "lemon juice", "cream of chicken soup", "mushrooms", "celery", "onion", "water chestnuts", "eggs", "potato chips"]