Preheat the oven to 375°F (190°C). Spray a 9 x 5–inch (23 x 13–cm) loaf pan with nonstick spray.
In a medium-sized bowl, mix together the bananas, almond milk, maple syrup, melted vegan butter, vanilla, cinnamon, baking soda and baking powder. Then, mix in the quick oats and flour just until smooth.
Pour the batter into the prepared loaf pan. (Don’t forget to lick the spoon!) Bake the bread for 40 to 50 minutes, or until golden brown on top. Check it with a toothpick inserted into the center—you'll know it's done when the toothpick comes out clean.
Remove from the loaf pan and serve warm on its own, or spread with a little softened vegan butter and drizzle with maple syrup. This bread keeps well on the countertop wrapped in plastic for 3 to 5 days.
