Preheat Oven to 350 degrees, line muffin tins with paper cups
In a large mixing bowl, whisk eggs, sugar, pumpkin, oil, pumpkin pie spice, and vanilla until well combined
In a small bowl whisk flour, oats, baking powder, soda, salt, and stir until combined
Gently combine wet and dry ingredients until well incorporated - but don't over mix
Divide batter among 12 muffin cups (cookie scoops works well for this)
Bake for 20-23 minutes