Steak and Mushroom Pot Pies

stewing beef (I used chuck steak cut into chunks, bone removed)

large onion (diced)

carrots (diced)

celery sticks (diced)

mushrooms (sliced)

garlic (crushed)

smoked paprika

each dried thyme (dried rosemary and dried oregano (I like the earthiness of the dried herbs))

bay leaves

strong beef stock (alternatively add a heaped tbsp bovril to 500ml water)

cornflour mixed with 50ml milk

salt & pepper

roll ready-made puff pastry (rolled out slightly)

egg (beaten)