Cook pasta according to package instructions. Meanwhile, place all remaining ingredients in a blender and process until smooth. Once pasta is complete, strain, rinse and place the pasta back in the pot. Add pesto and mix with a spoon until combined. Top with pine nuts, zucchini, and fresh herbs if you like.
Recipe by Healthful Pursuit at https://www.healthfulpursuit.com/2011/06/pumpkin-pesto-pasta/