Whisk eggs in large bowl, add bananas, sugar, vanilla, oil, applesauce. Combine well. Then add flour, baking soda, baking pwder, flax and chia seeds. Mix together for 2 minutes. Add 1/2 cup chopped walnuts if desired.
Put into greased 9 x 5 inch loaf pan.
Cook for 1 hr/10 minutes in 325 degree oven. Take out and let cool, remove from pan and enjoy.