Quorn Vegetarian Steak Strips & Ale Pie

Ingredients

• 300g Quorn Vegetarian Steak Strips
• 1 tbsp olive oil
• 1 small onion, finely chopped
• 1 carrot, peeled and thinly sliced
• 1 stick celery, thinly sliced
• 250g mushrooms, sliced- portabello are best if you can get them
• 1 garlic clove, crushed
• ½ tsp brown sugar
• 1½ tsp cornflour
• 100ml pale ale
• 1 vegetable stock cube
• 1 generous teaspoon tomato purée
• ½ tsp yeast extract
• ½ tsp dried thyme
• ½ tsp dried rosemary
• 220g puff pastry for top of pie
• 1 egg to glaze