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Fish pie in a baking dish with mashed potato topping.

The BEST Easy Fish Pie

This easy fish pie combines tender white fish, salmon, and prawns in a rich, creamy sauce topped with golden mashed potatoes. Perfect for a comforting meal.
5 from 1 vote
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Prep Time: 20 minutes
Cook Time: 50 minutes
Total Time: 1 hour 10 minutes
Servings: 6 Servings
Author: Deborah Rainford

Ingredients

  • 500 g (1 lb) white fish, e.g., cod or haddock or frozen fish pie mix, thawed
  • 200 g (½ lb) salmon
  • 200 g (½ lb) prawns, peeled and deveined
  • 1 kg (2 lb) potatoes, peeled and diced
  • 100 g (¼ cup) butter
  • 200 ml (¾ cup) cream, or milk as a substitute
  • 200 ml (¾ cup) milk
  • 40 g (⅓ cup) flour
  • 150 g (1 ¼ cups) cheddar cheese, grated
  • 2 tablespoon fresh parsley, finely chopped
  • Salt and pepper to taste

Instructions

Preparing the Mashed Potatoes:

  • Place the diced potatoes in a large pot, cover with water, and bring to a boil.
  • Boil for 15-20 minutes or until the potatoes are soft.
  • Drain and mash the potatoes with 50 g of butter and a splash of milk. Set aside.

Making the Creamy Fish Pie Filling:

  • In a saucepan, melt 50 g of butter over medium heat.
  • Stir in the flour to form a roux, cooking for 1-2 minutes.
  • Gradually whisk in the milk and cream, stirring constantly until the mixture thickens.
  • Add the parsley and season with salt and pepper.
  • Mix in the white fish, salmon, and prawns, ensuring they are well coated in the creamy sauce. Remove the pan from the heat.

Assembling and Baking:

  • Preheat your oven to 200°C (400°F).
  • Pour the creamy fish pie filling into a large casserole dish.
  • Smoothly layer the mashed potatoes over the filling.
  • Sprinkle the grated cheddar cheese on top.
  • Bake for 25-30 minutes or until the top is golden brown.

Notes

  • Fish: Using frozen fish is fine, but ensure it is fully thawed before use. Cheese: For a lighter option, consider using low-fat cheddar.
  • Sauce Thickness: If the sauce feels too thick, add a splash of milk to thin it out. If it's too thin, add a little more flour to thicken.
  • Cheese Alternatives: Gruyère or Parmesan can also be used as a topping if you prefer.
  • Oven Temperatures: Ovens can vary, so keep an eye on the pie during the last 10 minutes of baking to avoid over-browning.
  • Gluten-Free: To make this dish gluten-free, use gluten-free flour for the roux and ensure all other ingredients are gluten-free.
  • Make-Ahead: The fish filling can be prepared a day in advance and stored covered in the fridge. Assemble and bake the next day for easy meal prep.

Nutrition

Calories: 567kcal | Carbohydrates: 38g | Protein: 40g | Fat: 28g | Saturated Fat: 16g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 7g | Trans Fat: 1g | Cholesterol: 171mg | Sodium: 554mg | Potassium: 1295mg | Fiber: 4g | Sugar: 5g | Vitamin A: 969IU | Vitamin C: 35mg | Calcium: 319mg | Iron: 3mg
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