Method

1. Fry the onion, celery and carrot for 3-4 minutes then add the minced lamb and the garlic and fry till brown.
2. Add the flour and cook for 1 minute.
3. Slowly add the stock and then the chopped tomatoes and cook on a low heat, simmering.
4. Place the potatoes in a large pan of salted water and bring to the boil, cook till ready.
5. Mash the potatoes and add the butter, milk and egg yolk, taste and add salt and pepper accordingly.
6. Add the Worcestershire sauce to the lamb and place in a suitable oven proof dish, top with the potato mix and bake for 25-35 minutes 200’c-400’f, top should be golden brown.