Oreo Pie
["3 egg whites", "1/2 c. sugar", "1/2 c. chopped nuts", "12 Oreo cookies, crushed", "whipped topping"]
["Beat egg whites and sugar in bowl until stiff peaks form. fold in nuts and crushed Oreos.", "Spoon into buttered 8-inch pie plate. Bake at 350\u00b0 for 30 minutes.", "Spread with whipped topping before serving."]
["egg whites", "sugar", "nuts", "cookies", "topping"]