Preheat oven to 350 degrees F, and spray a mini muffin tin with nonstick spray.
In a stand mixer or medium bowl, add pumpkin, banana, and maple syrup. Mix together until the mixture is smooth.
Add the egg, melted butter, and vanilla, and mix well.
Add all dry ingredients (oat flour, baking soda, cinnamon, ginger, nutmeg, and cloves) and mix until just combined.
Use a Tablespoon to add the mixture to your prepared mini muffin tin. Full muffin cups to the top.
Bake for 10-12 minutes, or until muffins are golden brown around the edges.
Let cool completely, then remove from the pan and serve.