Preheat the oven to 350°F (180°C). Line a 9x5-inch loaf pan with parchment paper and lightly grease the sides of with coconut oil.
In a large bowl, mash up the banana until almost smooth then add in the wet ingredients until well combined.
Mix in the wet ingredients until well combined.
Stir the dry ingredients without over mixing.
Spoon into the loaf pan ensuring that dough is spread evenly. Sprinkle with the left over oats.
Bake for 45 to 55 minutes until lightly golden and tooth pick comes out clean.
Let cool for 15 minutes and only slice once cooled. Enjoy!