Spaghetti & meatballs

Ingredients

• 300 g good quality free range pork sausage - approx 4 large links
• 500 g lean beef mince
• 1 carrot - finely grated
• 1 small onion - coarsely grated
• 1 tbsp dried oregano
• 50 g parmesan (extra to serve) - finely grated
• 1 medium egg
• 1 tbsp olive oil
• 1 courgette - coarsely grated
• 3 garlic cloves - finely grated
• 1 tbsp tomato purée
• pinch caster sugar
• 1 tbsp red wine vinegar
• 2 tins (400g) chopped tomato
• cooked spaghetti