Preheat oven to 350?F. Grease a 9 x 5 inch loaf pan and set aside.

In a large bowl, whisk together mashed bananas with the melted butter, stirring to combine. Add the brown sugar and white sugar. Whisk to combine. Add the greek yogurt, eggs, and vanilla extract and whisk until fully combined.

In a separate bowl, combine the flour, baking soda, and salt. Fold the dry ingredients into the wet. Do not over mix! Fold the chocolate chips in last, folding a few times until just combined.

Bake for 50 minutes, or until a knife inserted in the center comes out clean. Allow to cool for 15 minutes before removing from loaf pan and serving.