Beat banana, buttermilk, egg whites, oil, brown sugar, and pudding mix in a bowl for several minutes. Mixture should slightly thicken up if you can beat it long enough.
Fold in salt and self rising flour with a spoon, just until combined. Do not over mix.
Spray a 9 inch loaf pan with cooking spray. Spoon batter into loaf pan.
Bake at 350 for 45-60 minutes.
Notes
Serving size details for calories: My loaf is 9 inches, and weighed 19.5 ounces.Each slice is approximately 1 ounce and 1/2 inch wide You can leave out the pudding mix, but it really gives it flavor!