In a large pot add onion and butternut squash covering with water by at least an inch or two. Bring to a boil then reduce heat to medium and simmer until veggies are tender (about 15 minutes, test butternut with a fork to check if it’s tender).
Cook chickpea pasta according to package instructions reserving ¼ cup cooking liquid once noodles are done cooking and before you drain.
Place noodles back in the pot and set aside (you can run cold water over them every 5 mins or so to prevent sticking).
When squash and onions are tender, drain then add them to a high speed blender with the cashews, nutritional yeast, lemon juice, salt, dijon, garlic powder, black pepper, smoked paprika, turmeric, nutmeg and reserved cooking liquid from the pasta.
Blend until completely smooth. Use a tamper if necessary to push ingredients to the bottom of the blender.
Add butternut squash sauce to the pasta and stir, making sure every noodle is covered in sauce. Reheat if needed.