Mini Chicken Meatballs

Ingredients

• 500 g ground chicken
• 2 slices bread, with crusts removed soaked in milk
• 1 egg, beaten
• 1/4 cup grated parmesan cheese
• 2 tablespoons fresh parsley, chopped
• salt & freshly ground black pepper
• plain flour, for coating
• 4 tablespoons olive oil
• Sauce
• 2 tablespoons olive oil
• 1 onion, diced finely
• 1 garlic clove, crushed
• 1 carrot, diced finely
• 1 stick celery, diced finely
• 700 g tomato passata
• 1 cup cold water
• 1/2 cup sour cream
• 3/4 cup pitted green olives, sliced (optional)
• 1/4 cup chopped herbs (eg, parsley, basil)
• chopped fresh parsley, to garnish
• pasta (optional) or steamed rice, to serve (optional)