Yam And Apple Casserole
["4 medium (1 3/4 lb.) yams", "4 Tbsp. butter, cut into thin pats", "1/2 tsp. nutmeg", "2 medium Yellow Delicious apples", "1/4 c. packed dark brown sugar"]
["Cook yams in water until almost tender, 25 minutes.", "Cool and remove the skins.", "Cut into 1/2-inch thick slices.", "Pare and core apples; cut each in 6 rings."]
["yams", "butter", "nutmeg", "apples", "brown sugar"]