Preheat the oven to 375°F (190°C). Line a baking sheet with parchment paper.
In a mixer, cream together softened butter, peanut butter, white sugar, and brown sugar until fluffy.
Beat in eggs one at a time followed by vanilla extract until combined.
In another bowl, mix flour, oats, baking soda, and salt; gradually add to the wet mixture without overmixing.
Fold in mashed bananas and chocolate chips until evenly distributed.
Scoop dough onto the prepared baking sheet, leaving space between each scoop.
Bake for about 12 minutes or until edges are lightly browned. Cool on a wire rack before serving.
