Preheat oven to 350 degress F.
In a mixing bowl or food processor, combine bananas and butter and mix well. Stir in eggs, mixing well to combine. Add in Greek yogurt, vanilla extract and sugars, and stir well to mix.
In a separate bowl, combine flour, baking soda, salt and cinnamon. Mix well.
Gently stir wet ingredients together with dry ingredients until just combined. Do not over mix.
Spoon batter into an 8 1/2 inch by 4 1/2 inch bread loaf pan that has been generously sprayed with non stick cooking spray. Sprinkle cinnamon chips over top of bread.
Bake for approximately 45 minutes, then gently cover with foil and bake for an additional 15 minutes (a total time of one hour), or until a knife inserted into center of bread comes out clean. Remove from oven and allow to cool.
Slice bread, spread with Nutella and share the happy with others!