1. Preheat oven to 350 degrees Fahrenheit. Line a loaf pan with parchment paper; set aside.
2. Put bananas, coconut oil, maple syrup, eggs, and vanilla into a large bowl and mash with a potato masher until bananas are completely mashed and all the ingredients are well mixed. Alternately, you can mash the bananas with a fork first and add them to the other wet ingredients.
3. Add all remaining ingredients, including pineapple and 1/2 cup coconut, and stir just to combine. Pour into prepared pan, and top with remaining coconut and sugar. Use a spoon to gently swirl the coconut into the batter.
4. Bake for 45-55 minutes, or until banana bread is fully cooked through. A toothpick inserted into the center should come out clean, and the banana bread should spring back when gently pressed.
5. Let cool, then slice and eat. Leftovers keep well in an airtight container at room temperature for up to 3 days or 5+ in the fridge.