Preheat oven to 350 degrees F. Line an 8×8-inch metal baking pan with parchment paper. Lightly spray with nonstick cooking spray and set aside.
In a large bowl, combine the pumpkin, almond butter, maple syrup, egg, and vanilla extract.
Add the oats, pumpkin pie spice, cinnamon, baking powder, salt, and ½ cup chocolate chips. Stir until combined.
Pour the mixture evenly into the prepared pan. Top with remaining chocolate chips.
Bake for 30 to 40 minutes or until set and the bars are slightly golden brown around the edges. Remove from the oven and sprinkle with flaky sea salt. Let cool in the pan before cutting. When cool, cut into squares and serve.
