Preheat the oven to 350°F and line a baking sheet with parchment paper.

In a large bowl, mash the ripe bananas until smooth.

Add honey, vanilla extract, and cinnamon to the mashed bananas and mix well.

Add the rolled oats, raisins, and chopped walnuts to the banana mixture and stir until combined.

Scoop spoonfuls of the batter onto the prepared baking sheet and flatten slightly.

Bake for 12 minutes or until the edges are golden brown.

Remove from oven and let cool for a few minutes before transferring to a wire rack.