Preheat oven to 350°F (175°C). Grease and line a 9x5-inch (23x13 cm) loaf pan with parchment paper.
Prepare oven with water: Place an oven-safe baking dish filled with hot water on the lower rack of your oven. Do not place the pumpkin bread pan inside the water bath. This creates steam, helping the bread stay moist.
Wet ingredients: In a large mixing bowl, whisk together the pumpkin puree, granulated sugar, light brown sugar, vegetable oil, eggs, yogurt, and vanilla until smooth.
Dry ingredients: In a separate bowl, sift together the flour, baking powder, baking soda, cinnamon, ginger, and pumpkin pie spice.
Combine: Gradually fold the dry ingredients into the wet ingredients, mixing until just combined. Do not overmix.
Bake: Pour batter into the prepared loaf pan. Smooth the top with a spatula and sprinkle pumpkin seeds evenly on top.
Bake for 55–65 minutes, or until a toothpick inserted in the center comes out clean.
Cool: Let the bread cool in the pan for 10 minutes before transferring to a wire rack to cool completely.