Preheat your oven to 350°F (175°C) and prepare a 9x5 inch bread pan with cooking spray.

In a medium bowl, whisk together the all-purpose flour, baking soda, and salt until well combined.

In a large mixing bowl, combine melted butter and sugar until blended, then mix in yogurt, eggs, mashed bananas, and vanilla extract.

Gently add the dry mixture to the wet ingredients, folding until just combined.

Fold in the blueberries gently into the batter.

Pour the batter into the greased bread pan and smooth the top with a spatula.

Bake for 65 to 70 minutes, checking for doneness with a toothpick.

Allow the bread to cool in the pan for 10 minutes, then transfer to a wire rack to cool completely.