Step 1

Preheat oven to 350 degrees Fahrenheit. Mash bananas in a large bowl using the back of a fork or a potato masher. Try to get it as smooth as possible but small lumps are fine. Measure out 1 cup. Freeze any leftovers.

Step 2

Stir in peanut butter and vanilla extract. Add in the oats and the rest of the remaining ingredients, including chocolate chips, carrots, or any of the optional add-ins. Stir to combine.

Step 3

Pour the batter into a lined 8 inch square baking pan. Bake for 20-22 minutes. Remove, cool completely, cut into bars.