1 In a bowl, mix together beef mince, garlic, onion, parsley, lemon zest, mustard and egg. Season well with salt and pepper. Roll into lime-size balls and set aside. 2 Heat olive oil in a small frying pan. Add meatballs and cook in batches until golden. Prep time 10 mins Cooking time 20 mins Serves 4 600g beef mince 2 garlic cloves, finely chopped 1 small onion, finely chopped 10g parsley, chopped 1 lemon, grated zest of 1 tbsp whole-grain mustard 1 egg, beaten 1 tbsp olive oil, plus extra 400g good-quality Italian tomato sauce 4 small baguettes, halved horizontally Parmesan, grated, and parsley, chopped, to serve Drain on paper towel and keep warm. 3 Heat the sauce in a large pan until it begins to simmer. Add all the meatballs and let simmer until cooked through. 4 Drizzle a little olive oil inside each of the baguettes and fill with meatballs and sauce. Garnish with cheese and parsley and serve immediately.