Garlic & zucchini: Peel the garlic cloves and crush them with the flat side of a knife. Cut the zucchini lengthwise into quarters, then into bite-sized (the smaller the pieces, the quicker they will cook).
Sauté: Heat a large pan with olive oil. Sauté the garlic over medium-high heat for 1 minutes. Add in the zucchini and sauté for 2-3 minutes until golden. Reduce to medium heat and cook for another 10 minutes.
Pasta: Cook the pasta according to package directions.
Basil: Wash the basil and remove thick stems.
Blend: Add ⅔ of the cooked zucchini and the basil to a high-speed blender. Blend until smooth. Then, add in the cashew butter, nutritional yeast, and salt. Blend again.
Toss: Drain the cooked pasta and add it back to the pot. Stir in the zucchini basil sauce and let it thicken slightly. Serve with the rest of the zucchini and fresh basil.