Preheat oven to 350 degrees.
In a large bowl mix together sugars and eggs.
Add in the bananas, peanut butter, greek yogurt, coconut oil, and pure vanilla extract. Mix until all the ingredients are combined.
Add to wet ingredients the whole wheat flour, baking soda, salt, and ground cinnamon. Stir the ingredients just until everything is combined.
Slowly stir in the chocolate chips.
Spray a muffin pan with cooking spray. Divide the batter among 15 muffin cups. You might need to bake a second pan. Bake for 18-20 minutes. Don't overcook.
Let sit for a few minutes then remove the muffins from the pan and let them finish cooling on a cooling rack. Serve warm or cool.