Sweet Potato Casserole
["3 c. cooked sweet potatoes, mashed", "1/2 c. sugar", "2 eggs, beaten", "1/2 tsp. salt", "1/4 c. margarine, melted", "1/2 c. milk", "1 1/2 tsp. vanilla", "1/2 c. brown sugar", "1/3 c. all-purpose flour", "1 c. chopped nuts", "3 tsp. margarine"]
["Combine potatoes, sugar, eggs, salt, 1/4 cup margarine, milk and vanilla.", "Spoon into greased 1 1/2-quart baking dish.", "Combine brown sugar, flour, nuts and 3 tablespoons margarine and spread over sweet potato mixture. Bake at 350\u00b0 for 35 minutes."]
["cooked sweet potatoes", "sugar", "eggs", "salt", "margarine", "milk", "vanilla", "brown sugar", "all-purpose", "nuts", "margarine"]