Spaghetti squash works well with many of the same sauces and preparations that you would use with regular spaghetti, though keep in mind that the flesh is more delicate and closer to the consistency of angle hair pasta, meaning it will not be able to hold hardy meat sauces. Serve it with herbed butter or oil-based sauces, parmesan cheese, a traditional marinara or carbonara sauce, or underneath meatballs.