Smoked Trout Fish Pies Recipe
Introduction
Smoked trout fish pies offer a comforting twist on a classic dish, combining rich, smoky flavors with creamy mashed potatoes. Easy to prepare and perfect for using up leftovers, this recipe is sure to become a family favorite.

Ingredients
- 1½ tbsp butter
- 3 tbsp flour
- 350ml full-fat milk
- 1-2 tbsp creamed horseradish (optional)
- Small bunch dill, chopped
- 1 large bunch spring onions, chopped
- Zest of 1 lemon
- 2 x 175g packs smoked trout fillets, skin and bones removed, flaked into big chunks
- 450g leftover mashed potatoes
Instructions
- Step 1: Heat the oven to 200°C (180°C fan)/gas mark 6. Melt the butter in a saucepan over medium heat.
- Step 2: Stir in the flour and cook for 1 minute to form a roux. Gradually whisk in the milk and add the horseradish if using. Simmer the sauce until it thickens, about 2 minutes.
- Step 3: Remove the sauce from heat and stir in the chopped dill, three-quarters of the spring onions, lemon zest, flaked smoked trout, and seasoning to taste.
- Step 4: Pour the fish mixture into four individual pie dishes or one large pie dish.
- Step 5: Mix the leftover mashed potatoes with the remaining spring onions. Spoon this mixture evenly over the fish filling.
- Step 6: Bake in the preheated oven for 15-20 minutes, or until the topping is golden and the filling is bubbling.
Tips & Variations
- For a flavor change, swap smoked trout with hot-smoked salmon or combine prawns with smoked salmon trimmings for a seafood twist.
Storage
Store leftover fish pie covered in the refrigerator for up to 2 days. To reheat, warm in the oven at 180°C until thoroughly heated and bubbly again to keep the topping crispy.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I use fresh trout instead of smoked trout?
Fresh trout will work but won’t have the same smoky flavor. You can cook and flake fresh trout before adding, but consider adding a smoky ingredient or seasoning for depth.
Is creamed horseradish necessary?
No, it is optional. It adds a subtle kick that complements the smoky fish, but you can omit it if you prefer a milder taste.
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Smoked Trout Fish Pies Recipe
- Total Time: 35 minutes
- Yield: 4 servings 1x
Description
Delightful smoked trout fish pies with a creamy, lemon-zested sauce combined with fresh dill and spring onions, topped with fluffy mashed potatoes baked to a golden finish. Perfect for a comforting meal using leftover mashed potatoes.
Ingredients
For the Sauce and Filling
- 1½ tbsp butter
- 3 tbsp flour
- 350ml full-fat milk
- 1–2 tbsp creamed horseradish (optional)
- Small bunch dill, chopped
- 1 large bunch spring onions, chopped
- Zest 1 lemon
- 2 x 175g packs smoked trout fillets, skin and bones removed, flaked into big chunks
For the Topping
- 450g leftover mashed potatoes
Instructions
- Preheat the Oven: Heat the oven to 200°C (180°C fan)/gas mark 6 to prepare for baking the pies.
- Make the Roux: Melt the butter in a medium saucepan over medium heat. Stir in the flour and cook for 1 minute to form a roux, ensuring the flour is fully combined but not browned.
- Add the Milk and Horseradish: Gradually stir in the full-fat milk and the creamed horseradish if using. Continue to stir and cook until the sauce bubbles and thickens, about 2 minutes.
- Mix in Flavorings and Fish: Add the chopped dill, three-quarters of the chopped spring onions, lemon zest, and flaked smoked trout to the sauce. Season with salt and pepper to taste and mix gently to combine all ingredients evenly.
- Assemble the Pie: Pour the fish mixture evenly into 4 individual pie dishes or one large pie dish. In a separate bowl, mix the leftover mashed potatoes with the remaining spring onions, then spoon this mixture over the fish filling to cover completely.
- Bake: Place the pie(s) in the preheated oven and bake for 15-20 minutes or until the topping is golden brown and the filling is bubbling around the edges.
- Serve: Remove from oven and allow to cool slightly before serving for a comforting and flavorful fish pie meal.
Notes
- You can substitute smoked trout with hot-smoked salmon or a combination of prawns and smoked salmon trimmings for variety.
- Using leftover mashed potatoes as the topping helps reduce food waste and adds a rich, creamy texture.
- If you prefer a milder flavor, omit the horseradish or adjust the quantity to taste.
- Pie dishes can be individual servings or a single large dish depending on your preference.
- Prep Time: 15 minutes
- Cook Time: 20 minutes
- Category: Main Course
- Method: Baking
- Cuisine: British
Keywords: smoked trout fish pie, fish pie recipe, leftover mashed potatoes recipe, baked fish pie, smoked fish dishes

