Preheat the oven to 350°F (175°C) and grease a 9x5 inch loaf pan.

In a large mixing bowl, mix 3 mashed overripe bananas with 1/2 cup melted unsalted butter until smooth.

Add 3/4 cup granulated sugar, 1/4 cup brown sugar, 2 eggs, and 1 teaspoon vanilla extract. Whisk until smooth and glossy.

Stir in 1/2 cup Greek yogurt until well mixed.

In a separate bowl, whisk together 1 1/2 cups all-purpose flour, 3/4 teaspoon baking soda, and 1 teaspoon salt.

Gently fold the dry ingredients into the wet mixture until just combined.

Fold in 2/3 cup of chocolate chips until evenly distributed.

Pour the batter into the prepared loaf pan and smooth the top.

Bake for about 50 minutes or until a knife inserted in the center comes out clean.

Let the bread cool in the pan for 15 minutes, then transfer to a wire rack to cool completely.