Slice banana. Spread out slices and freeze for at least 2-3 hours on a flat surface.
Place banana slices and mint into food processor or blender. Pulse several times to start pureeing the bananas. Knock the mixture down frequently to keep the mix in reach of the blades. It will take a few minutes for the mixture to start to turn smooth.
Add chocolate chips and pulse a few more times to break them up a little. Serve immediately.
Ingredients are per serving.