Ingredients
3 tbsp olive oil
2 large onions, finely sliced
300g grilled artichoke hearts, halved
300g mixed mushrooms, halved if large
1 garlic clove, crushed
1 tsp fresh thyme leaves
500g pack ready-made shortcrust pastry
1 egg, a pinch of salt and 1 tbsp water, beaten together to glaze
large...