Preheat the oven to 130° C / 265° F fan function (or 150° C / 300° F without the fan) and line a large baking tray with a piece of baking paper.
In a large bowl, mix mashed up banana, ground flax and almond butter. Stir well until well combined and set aside for 10 minutes for flax to activate.
Mix in the rest of the ingredients.
Spread the granola mixture on the prepared baking tray and bake for about 40 minutes. Rotate the tray and flip the granola pieces after about 20 minutes - use a spatula and be gentle if you don't want break big clusters up.
Allow the granola to cool down (it will crisp up) before using. Store in an airtight container. Use within a week.
