Old School Ground Beef Spaghetti Instructions Bring a large pot of salted water to a boil. Cook spaghetti until tender, then drain and set aside. In a large skillet or pot, brown ground beef over medium heat until fully cooked. Drain excess grease. Add chopped onion to the beef and cook until soft and translucent. Stir in garlic and cook for about 30 seconds until fragrant. Add tomato sauce (and crushed tomatoes if using), sugar, salt, pepper, and Italian seasoning. Simmer on low heat for 20-30