Becky'S Banana Cake
["2 small, ripe bananas", "1 box yellow cake mix", "1 (3 1/2 oz.) pkg. banana cream or vanilla instant pudding", "4 eggs", "1 c. water", "1/4 c. cooking oil", "1/3 c. chopped nuts (optional)"]
["Slice bananas in a large electric mixer bowl and beat until well mashed.", "Add remaining ingredients and blend, then beat at medium speed for two minutes.", "Pour into well-greased and floured, fluted tube pan or 9 x 13-inch pan.", "Bake in preheated 350\u00b0 oven for 60 to 70 minutes for the tube pan, 50 to 55 minutes for the oblong."]
["bananas", "yellow cake mix", "banana cream", "eggs", "water", "cooking oil", "nuts"]