Cook preferred pasta according to package directions.
Bring a pot of water to a boil, and add the cauliflower florets. Simmer for 8 to 10 minutes until they are softened.
Drain and add the florets to a blender with the cashew milk, nutritional yeast, garlic powder, lemon juice and sea salt. Blend until a smooth sauce is formed, adding more plant milk as needed to combine.
Pour in a saucepan along with your cooked pasta and toss until covered.