Banana Cake
["1 box yellow cake mix, mixed as directed on pkg.", "1 tsp. soda", "2 mashed bananas", "1/2 c. chopped nuts"]
["Add to cake mix.", "Mix together.", "Pour into 2 (9-inch) pans, greased and floured.", "Bake as directed on cake box."]
["yellow cake mix", "soda", "bananas", "nuts"]