In a salted pot of boiling water, cook your pasta according to package directions.
In a pan over medium high heat, add the oil and heat through. Add in the onions and garlic, and saute for about 5 minutes until slightly browned.
Lower heat to medium and stir in the tomato sauce, nutritional yeast, cashew cream, and sea salt. Stir to combine. Add in the pasta and stir to combine again. Let cook for about 3 minutes for the pasta to absorb the sauce, them remove from heat. Taste and add more salt if needed.
Serve, garnishing optionally with basil, and enjoy!