Beef casserole

1 tbsp oil
350g lean stewing steak,cut into cubes
1 onion,chopped
3 tbsp plain flour
450ml beef stock
150ml red wine
2 leeks,sliced
4 carrots,sliced
2tbsp horseradish
225g button mushrooms
freshly black pepper,to taste
fresh herb sprigs,to garnish

Preheat oven to 170c325f/gas 3.Heat oil in a ovenproof dish on the hob,add beef and cook for 5 min or until golden.Remove beef to a plate and add onions,fry until golden add the meat and flour back to dish and cook for 1 min.Stir in stock and wine and bring to the boil,stirring.Stir in horseradish,leeks,carrots,mushrooms and black pepper mix well.Cover and cook for 2 hours or until beef is cooked and tender.Garnish with herb sprigs and serve with mashed potatoes and veg.