This quick and easy fish pie is made with salmon and cod. Along with peas and crème fraiche, this pie is topped with mash and is a great-value filling family meal. This recipe serves 4 people and takes about 30 mins to whip up. The mash is light and creamy on top. If you're serving for kids and want to sneak some more veggies into the thier diets why not add carrots, butternut squash or sweet potato to the mash topping. You could also add other veggies into the filling too like sweetcorn or spinach. This easy fish pie can also be made with a packet of mixed fish instead of salmon and cod fillets - just use the same quantities.