Preheat your oven to 350 degrees Fahrenheit.
Line a baking sheet with parchment paper.
In a large bowl, mash the 2 large bananas until smooth.
Add 1 cup of oatmeal and 1 teaspoon of cinnamon to the mashed bananas. Mix well.
Stir in 1/2 cup of chocolate chips and 1/2 cup of chopped walnuts. Mix until all ingredients are well combined.
Using a tablespoon, scoop the mixture onto the prepared baking sheet, forming each portion into a rounded cookie shape.
Place 4 dried cranberries and 4 dried blueberries on each cookie, pressing them slightly into the dough.
Place the baking sheet in the oven and bake for 15 minutes.
Take out and cool and put in a glass jar. Enjoy!