Meatballs Italian Style

:INGREDIENTS
For the meatballs
500 gr minced pork or beef
150 gr fresh sausage
50 gr Parmesan
50 gr breadcrumbs
1/2 Glass of milk
1 egg
Parsley Salt and Pepper as your taste
For the sauce
1/2 Onion
1 garlic clove
600 gr Tomate sauce
500 ml stock Basil