Preheat your oven to 350°F (175°C) and line an 8x8 inch baking pan with parchment paper.

In a large mixing bowl, combine rolled oats, baking soda, and salt.

In a separate bowl, mash ripe bananas and add peanut butter, honey or maple syrup, melted coconut oil, and vanilla extract; stir until creamy.

Pour the wet ingredients into the dry ingredients and gently stir until just combined.

Transfer the mixture into the prepared baking pan and press firmly to spread evenly.

Bake for 20-25 minutes or until the edges turn lightly golden brown.

Cool completely on a wire rack before slicing into 12 squares.