Cream butter and sugar. Add eggs. Mix. Combine flour and baking soda. Add to butter/sugar mixture alternating with milk -beginning and ending with flour mixture. Fold in mashed bananas. Pour into 3 greased and floured 9-inch round cake pans. Bake (in preheated oven) at 350 for 25-35 minutes (or until cake springs back when lightly touched). Cool and frost between layers and sides with cream cheese frosting.
