Preheat oven to 350 degrees F. Spray an 8" loaf pan with cooking spray and/or line with parchment paper. Set aside.
In a medium bowl, whisk together flour, salt, baking soda and oats. Set aside.
In the large bowl of a stand mixer, cream together butter and sugar until fluffy and light in color; 1-2 minutes. Beat in eggs at medium speed, then stir in vanilla.
Stir in flour mixture just until combined, then stir in bananas and yogurt, also just until combined.
Pour the batter into the prepared loaf pan and bake in the 350 degree preheated oven about 1 hour, or until a toothpick inserted in the top comes out clean.
Cool in the pan on a wire rack for an hour, then gently remove from the pan to cool completely.
Slice and serve with butter or jam, if desired.
*To make this recipe even better for you, swap out the butter for plain greek yogurt or canola oil and swap out the all-purpose flour for whole wheat.*If desired, you could add 1/2 cup chopped walnuts or chocolate chips to the batter. Just stir in at the end.