Preheat oven to 350°F (175°C) and line a 12-cup muffin tin with paper liners.
In a blender, combine the cottage cheese, eggs, and banana. Blend until the mixture is completely smooth and liquified.
In a large bowl, add the carrot cake mix, protein powder, blended wet mixture, and crushed pineapple (with its juice).
Stir gently with a spatula until just combined. Do not overmix.
Divide the batter evenly into the 12 muffin cups. Place one pecan half on top of each.
Bake for 16–20 minutes, or until a toothpick comes out clean.