Preheat oven to 350℉. Spray bottom and sides of 9x5x3-inch loaf pan with Baker’s Joy. Melt butter and set aside to cool.
Combine flour, sugar, baking soda, salt and wheat germ in a large bowl with a wire whisk; set aside.
Mash bananas in a medium bowl. Add yogurt, eggs, butter and vanilla extract. Mix well.
Fold banana mixture into dry ingredients until just combined. (Batter will look lumpy and thick.) Spoon batter into prepared pan and bake for about 55 minutes or until the loaf is golden. (The loaf is done when you insert a toothpick and it comes out clean.) Cool in the pan for about 5 minutes, then remove to a wire rack to finish cooling.
If this serving size contains too many carbs and/or calories for you, make your slices smaller or cut a slice in half.