Herby lamb cobbler

INGREDIENTS

• 1 tbsp sunflower oil
• 200g smoked streaky bacon , preferably in one piece, skinned and cut into pieces
• 900g lamb neck fillets, cut into large chunks
• 350g baby onions , peeled
• 5 carrot , cut into large chunks
• 350g small button mushrooms
• 3 tbsp plain flour
• 3 bay leaves
• small bunch thyme
• 350ml red wine
• 350ml lamb or beef stock
• large splash Worcestershire sauce
• 350g self-raising flour
• 4 tbsp chopped mixed herbs , including thyme, rosemary and parsley
• 200g chilled butter , grated
• juice 1 lemon
• 5 bay leaves
• beaten egg , to glaze