Ingredients

• 4 tbsp any oil
• 2 medium onions, finely chopped
• 500g lamb shoulder mince (20% fat)
• 3-4 level tbsp plain flour
• 2 tbsp tomato puree
• pinch dried thyme
• 2 tbsp Worcester sauce
• roughly 300mls strong lamb stock
• salt and freshly ground black pepper
• For the Mash
• 750g potatoes, raw weight cooked and mashed, but warm
• 150mls hot milk, approx.
• 50g butter 
• salt and freshly ground black pepper