Preheat oven to 350 degrees F, line large baking sheet with unbleached parchment paper and spray with cooking spray.
In a small bowl, whisk flaxseed and water. Let sit for about 10 minutes while you are getting other ingredients ready.
In a large bowl, mash bananas. Add coconut oil, vanilla extract, cinnamon, baking soda and salt. Add flaxseed mixture and whisk really well.
Add oats and oat flour; stir to combine. Add nuts and dried fruit; mix well. Dough will be very thick.
Using large ice cream scoop, place batter on previously prepared sheet and flatten with the back of a scoop into large size cookies. Cookies do not spread. I had about 6 cookies per sheet. Bake in batches for 20 minutes or until nuts start to brown a bit.
Remove from the oven and let cookies cool for a minute, then transfer onto a cooling rack to cool off completely. Enjoy for breakfast, snack or a healthy dessert!
Notes
Store: Store in a cool dry place open. Do not wrap or place cookies in a jar. The more air, the better. That way cookies do not get soggy. Remember there is no sugar.
Freeze: In an airtight container for up to 3 months. Thaw on the counter for a few hours.