Preheat your oven to 350°F (175°C).Line a muffin tin with paper liners or grease it lightly with coconut oil.
In a large mixing bowl, whisk together the pumpkin puree, eggs, melted and cooled coconut oil, maple syrup, coconut sugar, and vanilla extract until well combined.
n another bowl, whisk together the oat flour, almond flour, pumpkin pie spice, baking powder, and salt.
Gradually add the dry ingredients to the wet ingredients, stirring until you have a smooth batter.
Gently fold in the roughly chopped walnuts into the batter.
Use a cookie scoop to portion out the batter into the prepared muffin cups. Fill each cup about 2/3 full.
Place the muffin tin in the preheated oven and bake for 18-20 minutes or until a toothpick inserted into the center of a pumpkin bite comes out clean.
Allow the pumpkin bites to cool in the muffin tin for a few minutes, then transfer them to a wire rack to cool completely.