Preheat oven:
Preheat your oven to 350°F (175°C). Line an 8x8-inch baking pan with parchment paper or lightly grease it.
Combine dry ingredients:
In a large mixing bowl, whisk together oats, almond flour, pumpkin pie spice, cinnamon, baking soda, and salt.
Mix wet ingredients:
In another bowl, whisk pumpkin puree, eggs, maple syrup, coconut oil, and vanilla extract until smooth and creamy.
Combine:
Pour the wet mixture into the dry ingredients and stir until fully combined. The batter should be thick and scoopable.
Add extras:
Fold in optional chocolate chips, nuts, or raisins if desired.
Bake:
Spread the batter evenly into the prepared baking pan. Bake for 25–30 minutes, or until the edges are golden and the center feels firm to the touch.
Cool and slice:
Let the bars cool completely in the pan before cutting into squares or rectangles.