Preheat oven to 325º
grease or butter a 9x5 loaf pan, set aside
OR you can line the pan with parchment paper before adding the batter to make it easier to remove the loaf from the pan
To make streusel, combine first four streusel ingredients, then mix in butter until crumbly, and set it in the fridge to cool
In a small mixing bowl, combine flour, baking soda, pumpkin pie spice, cinnamon and salt and set aside.
In a larger bowl, whisk both sugars, and oil together
Add pumpkin, vanilla, and egg and whisk until smooth
pat the zucchini dry if it is super juicy
Stir in zucchini to the wet ingredients
Add dry ingredients, and stir until just combined
Fold in the chopped pecans
Pour batter into your prepared 9x5 loaf pan
Top with streusel
Bake in preheated oven for 75 minutes, or until an instant read thermometer reads 205f°
Remove from oven and let cool 10 minutes
Loosen edges of loaf from pan with a butterknife or icing spatula, and remove from pan to finish cooling on a wire rack