Wash the strawberries, cut in half and add them to a pot on medium heat.
Squeeze the lemon half over the fruits and leave to simmer for 25 minutes, mixing from time to time. You will prepare a basic jam out of these fruits, so you will make sure that the juice is reduced and the jam is a little thick when ready.
In the meantime, add the rolled oats into a food processor and grind until a flour-like consistency is obtained.
Add the peeled bananas, the vanilla paste/ essence and the cinnamon. Blend together for a minute.
After the strawberry jam is done, leave to cool for a few minutes.
Turn on the oven at 190C.
Prepare a small baking tin with baking paper inside.
Leave 2 scoops of dough aside and put the rest in the baking tin. Level it with a spoon or spatula.
Pour the strawberry jam on top and level it up.
From the dough left aside, create little crumbles on top of the strawberry jam here and there until you are left out of dough.
Bake for 40 minutes at 190C.
Leave to cool completely before cutting into bars and serving.
Notes
You can use already made jam for this recipe as long as it not a very liquidy-fluid type of jam.