Preheat oven to 200C. Line a 12 cup muffin pan with paper muffin liners and spray liners with cooking spray.
In a large bowl, mix the oat bran, flour, brown sugar, bicarb soda, baking powder, cinnamon and salt. In a separate bowl, blend the apple sauce, egg replacer, canola oil and vanilla essence.
Thoroughly mix the apple sauce mixture into the flour mixture. Fold in the blueberries and pecans. Spoon the batter into the prepared muffin cups. Sprinkle batter with muesli, and press muesli lightly to make it stick.
Bake 18 minutes in the preheated oven, or until a toothpick inserted into a muffin comes out clean. Cool on a wire rack.