Heat the oven to 180 C. Grease a small oven safe bowl or ramekin.
Mash the banana in a bowl until smooth. Add oats cocoa baking powder maple syrup almond milk and salt. Stir until the oats look wet and the mix looks even.
Fold in most of the raspberries. Pour the batter into the dish. Top with the rest of the berries and the chocolate chips if you want them.
Bake for 20 to 25 minutes until the top feels set and the center springs back. Cool for a few minutes so the crumb can relax. Spoon warm from the dish.