Preheat the oven to 350°F (175°C). Line or lightly grease a muffin tin (9 wells).
In a medium bowl, whisk together mashed bananas, blended cottage cheese, eggs, peanut butter, and vanilla until smooth.
1 cup banana, ½ cup cottage cheese, 2 egg, ⅓ cup peanut butter, 1 tsp vanilla extract
Add the ground flaxseed, almond flour, baking soda, baking powder, cinnamon, and salt. Stir until just combined.
¼ cup flaxseed, ¾ cup almond flour, ½ tsp baking soda, ½ tsp baking powder, ¼ tsp cinnamon, 1 pinch salt
Fold in the chocolate chips, leaving a few for topping.
¼ cup dark chocolate chips
Spoon the batter evenly into 9 muffin cups (fill about 3/4 full).
Bake for 20-22 minutes, or until a toothpick inserted in the centre comes out clean.
Let cool in the tin for 5-10 minutes, then transfer to a wire rack.