Chop the top and bottom off the butternut squash and peel entire squash. Roughly chop into cubes. I only needed half of one butternut squash, once peeled and chopped equaled 900g.
Heat a large pan with avocado oil on a low-medium heat. Once hot, add your butternut squash and keep pan covered stirring every few minutes. Repeat until squash is tender, then remove from heat.
Once the squash is completely cool, add to a blender along with nutritional yeast, garlic, sea salt, and soy milk. Blend until creamy. If mixture is too thick, gradually add more plant-based milk 1/4 cup at a time.
Cook pasta according to instructions. Drain then return to pot and pour butternut squash cheese into pot. Mix to combine.
Serve immediately or keep stored in an airtight container in the fridge for up a week.