Preheat oven to 180°C/160°C fan-forced. Grease a 16cm x 25.5cm (base) slice pan. Line with baking paper, extending paper 2cm above edges of pan.
Mash banana until smooth. Add oats, dates, apricots, almonds, cinnamon and vanilla. Stir until well combined. Spoon into prepared pan. Using the back of a spoon, press evenly into pan. Bake for 30 to 35 minutes or until golden. Cool completely. Cut into small bars. Serve.