Preheat oven to 180°C/160° fan-forced. Lightly grease and line a 16 x 26cm slice pan.
Place biscuits in a food processor. Process until fine crumbs. Transfer to a large bowl. Stir in coconut, sultanas, pepitas, sunflower seeds and choc chips.
Add honey, coconut oil and egg white and mix well until combined. Press into prepared pan. Sprinkle with extra coconut. Bake for 20-25 mins until golden. Cool completely in pan before cutting into squares.