Preheat oven to 350ºF.
Spray a 9x5-inch loaf pan or cover the inside in parchment paper.
Place eggs in a medium-large bowl and whisk well.
Add pumpkin, whisk together until smooth then add oil, sugars, and vanilla and mix well again.
Sprinkle flour, pumpkin pie spice, baking soda, baking powder, and salt evenly over the top of the pumpkin mixture. Mix just until all flour has disappeared.
Transfer batter to prepared pan. Smooth the top and scatter the pepitas over the top.
Bake for 55-75 minutes OR until a toothpick inserted into the center of the loaf comes out clean. If getting too brown, cover lightly with foil after 45 minutes.
