Substitute the dates, raisins, and apricots for any other dried fruit you have on hand such as dried pineapple, apples, or craisins. Try not to over mix the batter as it may become a bit too tough. These muffins are also great cut in half and topped with some peanut or almond butter!
Preheat your oven to 350 and line muffin cups with muffin cup liners. You could also just spray your muffin cups with cooking spray if you didn't have liners. Coat liners with cooking spray (if using)
Combine flours, oats, brown sugar, wheat bran, baking soda, and salt in a large bowl. Combine yogurt, banana, and egg in another bowl. Make a well in the centre of the flour mixture and add the yogurt mixture to it. Mix until just combined.
Mix in dates, apricots, raisins, and walnuts. Spoon batter into prepared muffin cups and sprinkle with flax seed. Bake for 20 minutes. Remove muffins and cool in a wire rack.