Preheat your oven to 350°F (175°C). Line an 8x8 inch baking dish with parchment paper or lightly grease it.

Mash the bananas directly in the baking dish until smooth.

Add the rolled oats on top of the mashed bananas and mix well.

Add the cottage cheese.

Add the peanut butter.

Add in the blueberries.

Mix and spread the mixture evenly in the baking dish.

Bake in the oven for 18-20 minutes, or until the top is set and lightly golden.

Let the bars cool completely in the dish on a wire rack. Once cooled, cut into squares or bars.

Store the bars in an airtight container in the refrigerator for up to a week, or freeze for longer storage.