Preheat oven to 350 degrees and lightly grease a baking sheet.
In a medium bowl whisk together flour, oats, cinnamon, baking soda, salt, and pumpkin pie spice.
In a large bowl cream together butter and sugars until light and fluffy. Add egg, vanilla, and pumpkin and mix well.
Add dry ingredients to wet ingredients and mix until combined. Stir in chocolate chips.
Drop spoonfuls of cookie dough onto prepared baking sheet (about 4 tablespoons of dough) 2-3 inches apart. Bake for 10-14 minutes.
Allow to cool for 5 minutes on baking sheet before transferring to a cooling rack or sheet of parchment to continue to cool. Store in airtight container up to 1 week.