As promised, here is my recipe for Italian Jewish meatballs in tomato sauce. This dish can either be part of the Cuscussu’alla Livornese (Italian Jewish version of couscous) or cooked on its own. The main difference with normal Italian meatballs is the lack of Parmesan cheese and/or milk which is usually used to soften and give more taste to the meat. I like to wet the breadcrumbs in a little vegetable broth to give extra taste and I also use cinnamon and nutmeg. The latter is something that my mother and my grandmother used. My guess is that this is a Sephardic influence in the dish, as the use of sweet spices such as cinnamon and nutmeg do not appear in general Italian cuisine.
The traditional Roman Jewish way to make meatballs in tomato sauce is to use minced chicken and to add celery sticks to the tomato sauce. I prefer to use beef, or to mix beef and lamb together, but do try the chicken/turkey version as it is also very tasty.
I also do not mix onions with the raw meat. I like to pre-cook them on a slow flame and add the meat once the onion are soft. This gives give a more delicate flavour and makes the meatballs more digestible.