Pesto: Place the basil, pine nuts, garlic, nutritional yeast, and lemon juice, and sea salt into a food processor and pulse until a loose paste forms. Slowly add olive oil in a steady drizzle as you pulse the processor on and off. Process until it becomes a smooth, light paste. Scrape down sides as needed. Then add 1 Tbsp. of water at a time until a thick but pourable sauce forms.