Preheat the oven to 350 degrees F.
Spray two 9x5-inch loaf pans with cooking spray before lining them with parchment paper. Let there be a bit of overhanging parchment paper on the long sides of the loaf pans. This will allow you to use them as handles when removing the bread from the pans. See the 3rd picture in this blog post for an example. Spray the parchment paper with a bit more cooking spray. Set aside.
Combine the pumpkin puree, eggs, vanilla extract vegetable oil, water, and sugar in a medium-sized bowl. Mix until combined.
In another medium-sized bowl, whisk together the flour, baking soda, salt, and pumpkin pie spice. In several additions, add the dry ingredients to the wet, stirring until just combined.
Pour equal amounts of the batter into each of the prepared loaf pans.
In an even layer, sprinkle the Streusel topping over the batter.
Bake for 60-70 minutes, or until a toothpick, when inserted into the center of the loaves, comes out clean.