Jamie Oliver’s 5 Ingredients Fish Pie is a pared-back version of the traditional fish pie, made using a mix of fish, potatoes, milk or cream, and simple seasoning. The fish is gently cooked in a creamy sauce, topped with mashed potatoes, and baked until bubbling and lightly golden.
(Pantry staples like salt, pepper, and olive oil are not always counted in the 5 ingredients.)
Place the chopped potatoes into a large pan of salted water. Bring to the boil and cook for 15–18 minutes until soft. Drain well and allow them to steam dry briefly.
Mash the potatoes until smooth, adding a little olive oil if needed. Season lightly with salt and black pepper, then set aside while you prepare the filling.
Cut the fish into large chunks and place them in a saucepan. Pour over the milk or cream and gently heat until the fish just starts to flake. Do not boil, as this can make the fish tough.
Finely grate the lemon zest into the fish mixture and add a squeeze of juice. This lifts the flavour and balances the creaminess.
Preheat the oven to 190°C (375°F). Spoon the fish and creamy sauce into a baking dish. Carefully spread the mashed potatoes over the top, smoothing or lightly roughing up the surface.
Bake for 25–30 minutes until the filling is bubbling around the edges and the potato topping is lightly golden.
Allow the fish pie to rest for 5 minutes before serving so the layers settle and the sauce thickens slightly.
Find it online: https://jamieolivereats.uk/5-ingredients-fish-pie/