Pumpkin pie spice can be replaced with 1/2 teaspoon cinnamon, 1/2 teaspoon ground ginger, ¼ teaspoon ground nutmeg, and ¼ teaspoon cloves.
You could try and use spelt flour instead of all-purpose flour or whole wheat flour.
If you want to add a crunchy element, add some chopped pecans, walnuts or pepitas.
You can top the bread with the pecans or pumpkin seeds as well and skip the frosting and serve with vegan butter or maple syrup.
You can use any other chopped or dried fruit in lieu of dates.
Troubleshoot Moisture: breads with Volume moist elements like a pumpkin Purée and carrots can tend to easily have more moisture than What the flour can absorb and that can lead to gummy breads. — Remove excess moisture from the carrots in they are too juicy by pressing them in paper towels. — Some canned pumpkin purees Also can be extra moist which you can remove by placing the pumpkin purée on a paper towel for 10 minutes so the towel and can absorb the excess water that leaks. Make sure that your batter is very stiff.