2 small carrots, peeled and diced
2 celery sticks, trimmed and finely sliced
200g/7oz floury potatoes, preferably King Edwards or Maris Pipers, peeled and cut into 1.5cm/¾in cubes
1 medium onion, finely diced
1 tbsp brown sauce
½ tsp dried chilli flakes (optional)
1 tbsp tomato ketchup
1 tbsp plain flour
plain flour, for kneading and rolling
½ tbsp Worcestershire sauce
300ml/½ pint beef stock, made with 1 beef stock cube
½ tsp freshly ground black pepper
½ tsp hot chilli powder
1–2 tbsp semi-skimmed milk
250g/9oz lean beef mince (less than 10% fat)
75g/3oz frozen peas