Polpete al sugo

Cut the bread in small pieces, taking away the hard part.
Then place it in a bowl, cover with milk and set aside.

Peel the onion then proceed to grate it.
Do the same with the garlic.
Chop the parsley.
Beat the egg.
Grate the parmesan.
Squeeze the bread.

Then in a big bowl put the meat. Add the onion purée, the olive oil, the garlic, the herbs, some pepper, some salt, the cheese and the bread.

Combine everything without working too much the mixture.

Form the meatballs and fry them in a pan. 
Take them out and make a tomato sauce with onion in the pan.
Finish cooking the meatballs in the sauce.