Grasshopper Dessert
["1 box Ritz crackers, crushed", "3/4 c. melted butter", "2 small pkg. pistachio instant pudding", "1 c. milk", "3 pt. softened vanilla yogurt or ice cream", "1/4 c. chopped nuts", "1 small Cool Whip"]
["Mix cracker crumbs and melted butter together for crust.", "Pat in bottom of 9 x 13-inch Pyrex dish.", "Mix all other ingredients, except Cool Whip and nuts.", "Pour over cracker crumbs.", "Top with Cool Whip and sprinkle with nuts.", "Freeze for at least 3 hours."]
["crackers", "butter", "pistachio instant pudding", "milk", "vanilla yogurt", "nuts"]