Penne with turkey meatballs

Name: Penne with turkey meatballs
Prep time: 30 min
Cook time: 1 h 50 min
Total time: 2 h 20 min
Cuisine: European, Italian, Mediterranean
Ingredients: 30g plain dried bread crumbs; 2 tbsp whole milk; 2 large eggs, lightly beaten; 65g grated Romano; 450g turkey mince; Salt and freshly ground black pepper; 60ml extra-virgin olive oil; 5 cups tomato sauce, recipe follows; 1 pound dried penne pasta; 120ml extra-virgin olive oil; 1 small onion, chopped; 2 cloves garlic, chopped; 1 stalk celery, chopped; 1 carrot, chopped; Sea salt and freshly ground black pepper; 2 (900g) cans crushed tomatoes; 2 dried bay leaves; 4 tbsp unsalted butter (optional)