Steak and Guinness Pie

Ingredients

• 1 1/2 lb. 680g stewing beef, diced
• sea salt and freshly ground black pepper
• 2 Tbs. heaped flour
• olive oil
• 1 onion, peeled and roughly chopped
• 1 large carrot, peeled and roughly chopped
• 4 sticks of celery, washed and roughly chopped
• 2 parsnips, peeled and roughly chopped
• 1 handful of fresh mixed herbs (rosemary, thyme and bay), leaves picked
• 565ml/1 pint Guinness
• 2 x 400g/14oz tins of tomatoes
• 1 x 500g/1lb 2oz pack of puff pastry
• 1 egg, beaten