Meatballs with spaghetti

INGREDIENTS

• pack of 8 good-quality sausages
• 500g pack minced beef
• 4 garlic cloves , crushed
• small bunch fresh parsley , finely chopped
• 3 tbsp dried breadcrumbs
• 1 egg , lightly beaten
• plain flour for rolling
• 4 tbsp sunflower or vegetable oil
• 2 x 400g cans chopped tomatoes
• pinch sugar
• 500g spaghetti
• grated Parmesan , to serve