Preheat oven to 350℉. Line a 9x5 inch loaf pan with parchment paper.
In a large bowl, whisk together the egg, brown sugar, granulated sugar, oil, Greek yogurt and vanilla until smooth. Next, add in your bananas, flour, cinnamon, baking powder, baking soda, salt and mix together until combined.
Cream Cheese Mixture:
In a medium bowl using an electric hand mixer, beat the egg, cream cheese, sugar and flour until smooth.
Transfer 3/4 of the batter into the loaf pan and spread out evenly. Then, pour on the cream cheese mixture and spread out evenly. Transfer the remaining batter on top. Bake for 50-55 minutes or until toothpick comes out mostly clean. If the top starts to brown too much before the bread is done, loosely tent the top with aluminum foil. Allow to set in the pan for 10 minutes and transfer to a wire rack to cool completely.