Butter Pecan Banana Cake(Low-Fat)  
["3 eggs", "1 c. water", "1 c. mashed bananas", "1 pkg. butter pecan cake mix (Duncan Hines)"]
["Mash bananas, add 1/4 teaspoon baking soda and mix well; set aside.", "Blend cake mix, water and eggs at low speed until moistened.", "Beat at medium speed 3 minutes.", "Fold in mashed bananas.", "Put batter in two wax paper-lined cake pans.", "Bake in 350\u00b0 oven for 35 minutes or until done."]
["eggs", "water", "bananas", "butter"]