Boil the pasta as directed, and set aside about 1/3 cup of pasta water. Cook until al dente and strain.
To make the pesto, add the avocado, arugula, basil, nutritional yeast, garlic, salt and pepper, lemon juice, olive oil, and pasta water to a high-speed blender. Blend until smooth and creamy.
Add the pesto to the cooked pasta and toss to thoroughly coat.
Serve topped with additional fresh basil to taste.
Notes
Omit the nutritional yeast if desired for a less cheesy flavor. You can also use parmesan if tolerated.All nutritional information are estimations and will vary.