What is the traditional Italian recipe for spaghetti sauce, and is it typically made with marinara sauce?

The traditional Italian recipe for spaghetti sauce, also known as sugo or rag, typically includes ingredients like tomatoes, onions, garlic, olive oil, herbs, and sometimes meat like ground beef or sausage. Marinara sauce is a specific type of tomato-based sauce that is often used in Italian cuisine, but it is not the only type of sauce used for spaghetti.