Whisk together flour, brown sugar, salt, baking soda and cinnamon. Stir in grated apples, mashed bananas, melted butter, eggs and vanilla extract with spoon. Fold in nuts.
Spray a 9 x 13 baking dish with cooking spray and pour batter into the dish. Bake in preheated 350 degree oven 45 to 50 minutes until center tests done. Let cool and frost or sprinkle with powdered sugar before serving. Makes 12 servings.
Cream Cheese Frosting Instructions:
Mix together with mixer and spread on cooled cake.