Heat the oven to 350°F. Line a baking sheet with parchment paper.

Stir the bananas, peanut butter, honey, and vanilla in a large bowl.

Add the oats, cinnamon, baking soda, and chocolate chips. Mix until combined.

Scoop 1/4-cup portions onto the baking sheet and flatten each one slightly.

Bake for 12 to 15 minutes, until the edges look set. Cool completely before freezing.

Freeze in a sealed bag for up to 3 months. Thaw overnight or warm briefly.