Cheats Shepherds Pie | Donna Hay

Ingredients

• ¼ cup (35g/1¼ oz) plain (all-purpose) flour
• sea salt and cracked black pepper
• 1kg (2 lb 3 oz) boneless lamb shoulder, trimmed and cut into 2cm (¾ in) chunks
• 2 tablespoons extra virgin olive oil, plus extra for brushing
• 2 brown onions, cut into thin wedges
• 4 cloves garlic, crushed
• 2 carrots, finely chopped
• 2 stalks celery, finely chopped
• 400g (14 oz) can diced tomatoes
• 2 cups (500ml/17 fl oz) good-quality beef stock
• 2 tablespoons worcestershire sauce
• 1kg (2 lb 3 oz) potatoes, peeled and sliced into 5mm (¼ in) thick rounds
• ½ cup (40g/1½ oz) finely grated parmesan