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Healthy Two Potato Fish Pie: A Comfort Food Classic, Reimagined

My grandmother, bless her heart, had a knack for turning simple ingredients into feasts. Her fish pie, always bubbling hot from the oven with a golden, cheesy crust, was legendary. The aroma alone was enough to draw the whole family to the table. While I cherish those memories (and that rich, creamy flavor!), I’ve always thought about lightening it up a bit. This recipe, with its sweet and white potato topping and surprisingly flavorful filling featuring bacon and sweetcorn, captures the essence of her classic but with a healthier spin. It’s a taste of nostalgia without the guilt.

Recipe Overview

Prep Time: 20 minutes
Cook Time: 55 minutes
Total Time: 1 hour 15 minutes
Servings: 4
Yield: 1 pie
Dietary Type: Pescatarian

Ingredients

600g white potatoes, peeled and cut into 5cm chunks
500g sweet potatoes, peeled and cut into 5cm chunks
75g butter
200g smoked bacon lardons
1 bunch spring onion, thickly sliced
200g tinned sweetcorn
568ml 1% low-fat milk
600g cod fish fillets, cut into large pieces
200g prawns, raw
50g plain flour

Equipment Needed

Large saucepan
Wide heavy-based pan
Pie dish (approximately 25cm square and 5cm deep)
Jug
Medium heavy-based pan
Wooden spoon
Potato masher
Fork

Instructions

Preheat the oven to 190 degrees C (Gas mark 5). This ensures the pie cooks evenly and the topping gets beautifully golden.
Place the white potatoes in a large pan of cold water. Bringing them to a boil from cold helps them cook more evenly.
Bring the white potatoes to the boil, then add the sweet potatoes.
Simmer for 15 – 20 minutes until both the white potatoes and sweet potatoes are tender. You should be able to easily pierce them with a fork.
While the potatoes are simmering, place the smoked bacon lardons in a wide heavy-based pan and cook gently until they start to release their fat.
Increase the heat and fry the bacon for 5 minutes until crisp. Crispy bacon adds a wonderful smoky flavor and texture to the pie.
Stir in the spring onion and sweetcorn, cook for a further minute.
Transfer the bacon, spring onion, and sweetcorn mixture to a pie dish approximately 25cm square and 5cm deep.
Pour the 1% low-fat milk into the bacon pan and add the cod and raw prawns. Using the same pan ensures you capture all the delicious bacon flavor.
Bring to the boil and poach gently for 5 – 6 minutes until the cod starts to turn opaque. Be careful not to overcook the fish, as it will continue to cook in the oven.
Transfer the cod and prawns to a plate and strain the milk into a jug. This infused milk will form the base of our creamy sauce.
In a medium heavy-based pan, melt 50g of the butter and stir in the plain flour using a wooden spoon until it forms a thick paste. This is called a roux and is the foundation for our sauce.
Remove the pan from the heat and add a little of the warm milk, stirring until smooth. Adding the milk gradually and stirring constantly prevents lumps from forming.
Repeat this process until all the milk is used.
Return the pan to the heat and stir constantly until it comes to the boil.
Simmer for 2 minutes, stirring continuously to ensure the sauce thickens and doesn’t stick to the bottom of the pan.
Add the cod and prawns to the sauce, discarding any liquid left on the plate.
Season to taste with salt and pepper. Don’t be afraid to be generous with the seasoning, as this will enhance the flavor of the pie.
Pour the fish mixture into the pie dish and stir through to combine with the bacon, spring onion, and sweetcorn.
Drain the cooked white potatoes and sweet potatoes, then mash with the remaining 25g of butter and season to taste. The sweet potato adds a lovely sweetness and vibrant color to the topping.
Pile the mashed potato over the filling, spreading to the edges with a fork. Using a fork to create ridges in the topping will help it brown beautifully in the oven.
Place the pie in the preheated oven and cook for 30 minutes or until piping hot and the top is browning. The pie should be bubbling around the edges and the topping golden brown.
Serve with peas or salad.

NOTE: You can make the pie ahead, cover, and chill. When ready to cook, place in a preheated oven at 180 degrees C (Gas mark 4) for about 45 minutes. Make sure the pie is heated through properly before serving.

Expert Tips & Tricks

For an even richer flavor, try adding a bay leaf to the milk while poaching the fish. Remember to remove it before adding the milk to the sauce.
If you don’t have smoked bacon lardons, you can use diced smoked bacon instead.
A squeeze of lemon juice added to the fish filling can brighten the flavors.
For a smoother mash, use a potato ricer instead of a masher.
If the potato topping is browning too quickly, cover the pie with foil for the last 10 minutes of cooking.

Serving & Storage Suggestions

Serve the Healthy Two Potato Fish Pie hot from the oven, garnished with fresh parsley or a sprinkle of paprika. It pairs beautifully with a side of green peas or a fresh green salad.

Leftovers can be stored in an airtight container in the refrigerator for up to 3 days. Reheat thoroughly in the oven or microwave until piping hot. You can also freeze individual portions of the pie for up to 3 months. Thaw overnight in the refrigerator before reheating.

Nutritional Information

Nutrient	Amount per Serving	% Daily Value*
Calories	520 kcal	26%
Total Fat	15g	23%
Saturated Fat	8g	40%
Cholesterol	120mg	40%
Sodium	800mg	33%
Total Carbohydrate	60g	20%
Dietary Fiber	6g	24%
Sugars	12g	N/A
Protein	40g	80%

*Percent Daily Values are based on a 2000 calorie diet.

Variations & Substitutions

Gluten-Free: Use gluten-free flour to make the sauce.
Dairy-Free: Substitute the butter with a dairy-free spread and the milk with almond or soy milk. The taste will be slightly different, but still delicious.
Vegetarian: Replace the bacon with smoked paprika and add some chopped mushrooms to the filling for an umami flavor.
Fish: Feel free to use other types of fish, such as salmon, haddock, or pollock.
Vegetables: Add other vegetables to the filling, such as peas, carrots, or green beans.

FAQs (Frequently Asked Questions)

Q: Can I use frozen cod and prawns?
A: Yes, but make sure to thaw them completely before cooking and pat them dry to remove excess moisture. This will prevent the pie from becoming watery.

Q: Can I make the pie ahead of time and freeze it?
A: Yes, you can assemble the pie and freeze it before baking. Thaw it completely in the refrigerator overnight before baking. You may need to add a few extra minutes to the cooking time.

Q: How can I prevent the potato topping from becoming dry?
A: Add a little milk or cream to the mashed potatoes to keep them moist. You can also brush the top with melted butter before baking.

Q: What is the best way to reheat leftover fish pie?
A: Preheat the oven to 180 degrees C (Gas Mark 4) and bake the pie for about 20-25 minutes, or until heated through. You can also reheat it in the microwave, but the topping may not be as crispy.

Q: Can I use a different type of cheese on top?
A: While this recipe doesn’t traditionally include cheese, a sprinkle of grated parmesan or cheddar on top of the potato topping before baking can add a delicious cheesy flavor.

Final Thoughts

This Healthy Two Potato Fish Pie is a delicious and comforting meal that’s perfect for a cozy night in. It’s packed with nutrients and flavor, and it’s sure to be a hit with the whole family. Don’t be afraid to experiment with different variations and substitutions to make it your own. I encourage you to try this recipe and share your feedback. Serve it with a crisp white wine for a complete and satisfying meal. Bon appétit!

Healthy Two Potato Fish Pie Recipe