Preheat oven to 180 degrees C. Line a large baking dish with baking paper.
Process nuts and seeds in a food processor or blender until a coarse meal forms. If using a blender, this may need to be done in batches.
Add bananas, maple syrup and vanilla. Process until combined. If using a blender, blend bananas, maple syrup and vanilla until smooth. Combine all ingredients in a bowl until smooth and fully combined.
Add chocolate chips and process briefly or mix to combine.
Pour mixture into prepared dish. Spread with a spoon to smooth.
Bake at 180 degrees C for approximately 40 minutes, until browned on top.
This recipe will keep for 3 - 4 days in the fridge. I normally cut it into individual pieces and store in zip lock bags in the freezer. It will keep for 2 - 3 months in a sealed container in the freezer.
"High Iron Breakfast Slice" by WithExtraVeg - https://blog.withextraveg.net/high-protein-and-iron-breakfast-slice/