Mushroom & courgette rice pie - Good Food Middle East

Ingredients

• 2 tbsp olive oil
• 2 shallots or 1 small onion, finely chopped
• 2 garlic cloves, crushed
• 675g mixed mushrooms (such as chestnut, oyster and shiitake), sliced
• 2 large courgettes, chopped
• 50g risotto rice
• 3 tbsp white wine
• 300ml hot vegetable stock
• 3 tbsp chopped fresh tarragon
• 1 tbsp vegetarian parmesan -style cheese
• 2 tbsp crème fraîche
• 2 tbsp pesto
• 25g chopped walnuts
• ½ quantity shortcrust pastry (see 'Goes well with' below) made with a large pinch of saffron strands
• 1 tbsp milk, to glaze