This delicious fish pie, flavoured with fresh herbs and lemon and topped with fluffy mashed potato, is perfect for rustling up and sharing with family. Give this easy pie recipe a go as a marvellous midweek main. Preheat the oven to gas 4, 180°C, fan 160°C. Put the potatoes in a pan of cold water, bring to the boil and simmer for 25 mins, or until tender. Drain the potatoes and mash with a knob of butter and 50ml (2fl oz) of the milk. Stir through the lemon zest, dill and parsley; season to taste. Set aside, until needed. In a separate pan, melt the butter. Add the flour and cook for 2 mins, stirring to make a paste. Gradually stir in the remaining milk and the cream to make a thick white sauce; season. Stir in the mustard and chives. In a medium pie dish, combine the fish, prawns and white sauce. Top with the mash, then dot with butter. Bake for 30 mins, or until golden. See more Pie recipes