Preheat the oven to 325°. In a small bowl mix, the yogurt and baking soda then set aside.
In another bowl mix together the olive oil, sugar, and egg. To that add the mashed bananas, salt, and baking powder.
Add half the flour and blend, followed by the airy sour cream and blend, and then the last of the flour to blend.
Pour into a greased 9x5 loaf pan and bake for 50 minutes to one hour. Check for doneness around 45-50 minutes and every 5 minutes after until fully baked. Allow the banana bread to completely cool on a rack before serving.