|Mom in her lab circa 1965|
Mom always said the longer you simmer spaghetti sauce the better. She would take a big pot of sauce to the chemistry lab and let it simmer while she taught. Then she would have her students over for spaghetti that evening.
You can use the same ground beef mixture as for lasagna, or add 3 celery stalks and increase the ground beef up to 2 pounds (1 kg) for a meatier sauce.