In a medium bowl, whisk the flour, baking soda, poppy seeds and salt together and set aside.In a large bowl, add the bananas, apple sauce, butter, brown sugar, Splenda, egg whites and with a hand mixer, mix until creamy. There will be chunks of banana, that's okay!Bake in a mini loaf pan - I used a 1/2 cup of batter in each loaf pan. Bake for 25 minutes at 350 degrees.Let cool slightly before using.
Notes
If you don't have super ripe bananas, just slice a banana through the skin and microwave for 45 seconds, and proceed with the recipe. It will be easier to combine in the batter when the bananas are softened.