Put all the ingredients in your food processor and pulse until everything is in small pieces that stick together – don’t process too much or it will get too sticky. Press into three lined tart tins. Put in the refrigerator.
To make the filling
Mush the banana with fork and then add the chia seeds.
Take the crusts gently out of the tins. Spread the banana chia mixture into the crusts and then top off with the fruit. Gobble.