Preheat oven to 350 degrees F. Grease a 9x9 inch square pan, place a piece of parchment lined on the inside and set it aside
In a medium bowl, combine the flour, brown sugar, granulated sugar, baking soda, baking powder, cinnamon and salt and whisk to combine.
In a large bowl, whisk together the mashed bananas, strained crushed pineapple, greek yogurt, eggs, vegetable oil and vanilla extract and fully combine.
Slowly add the dry ingredients to the wet ingredients and stir until just incorporated. Do not over mix!
Pour the batter into the prepared square baking pan and spread out evenly with a spatula.
Bake the Banana Pineapple Bread in the preheated oven for 24-26 minutes or until a toothpick inserted in the center comes out clean.
Once the bread is baked, remove the bread from the oven and allow it to cool in the pan for 10 minutes before transferring to a plate or platter.