Puree bananas in a blender. Add eggs, yoghurt, apple sauce and vanilla extract; briefly blend until smooth. Drizzle in melted butter while blender is running and mix until combined, about 10 seconds.
Whisk oats, oat meal, ground almonds, brown sugar blend, chia seeds, bicarbonate of soda, cinnamon, salt and nutmeg together in a large bowl. Add liquid mixture from the blender; mix until no dry spots remain. Add pecans and chocolate chips and mix until evenly incorporated.
Pour mixture into 2 loaf cake tins and spread out evenly to the corners.
Bake in the preheated oven until tops of loaf cakes are dark golden brown and a skewer inserted into the centre comes out with tiny crumbs attached, 70 to 80 minutes.