Lemon Pepper Tuna Pie

This Lemon Pepper Tuna Pie combines tender tuna, vegetables, and a creamy lemon-pepper sauce beneath a golden mashed potato topping. A comforting yet light family dinner that’s perfect for weeknights and entertaining.

Comfort food doesn’t always have to be rich and heavy. Sometimes, all it takes is a handful of good ingredients, a bright burst of lemon, and a little time in the oven.

This Lemon Pepper Tuna Pie brings together tender chunks of tuna, sweet vegetables, and a silky lemon-pepper sauce beneath a blanket of buttery mashed potatoes. The filling is creamy without being overwhelming, while the fresh lemon zest and cracked black pepper keep every bite feeling light and vibrant.

It’s the sort of dish that feels equally at home on a cosy weeknight table or served to friends for a relaxed dinner gathering. The tuna remains moist, the vegetables add sweetness and texture, and the golden potato topping provides exactly the kind of comfort you’d hope for from a baked pie.

If you’re looking for a seafood dinner that’s wholesome, satisfying, and just a little elegant, this Lemon Pepper Tuna Pie deserves a place in your recipe collection.

Why You’ll Love This Recipe

• Comforting but not heavy
• Packed with protein and vegetables
• Bright lemon flavour balances the creamy sauce
• A wonderful alternative to traditional fish pie
• Perfect for make-ahead dinners
• Reheats beautifully the next day
• Family-friendly and freezer-friendly

What Makes This Tuna Pie Special?

Unlike many fish pies that rely heavily on cream and cheese, this recipe uses lemon zest, Dijon mustard, and freshly cracked black pepper to create a lighter, fresher flavour profile.

The tuna is quickly seared before being folded into the sauce, helping it stay tender and moist throughout baking. The result is a pie that’s rich enough to feel comforting but light enough to leave room for dessert.

Notes from the Kitchen

• Tuna is cooked twice, but gently. The quick sear helps develop flavour while keeping the fish moist during baking.
• Garlic is added before the onions to build a deeper, more aromatic flavour base.
• Freshly cracked black pepper gives the best flavour and aroma.
• Lemon zest lifts the richness of the sauce and keeps the dish feeling fresh.
• Creating ridges in the potato topping helps it brown beautifully in the oven.

Serving Suggestions

This pie pairs beautifully with:

• A simple green salad
• Steamed green beans
• Buttered asparagus
• Roasted broccoli
• Crusty bread
• Garlic toast

Storage Instructions

• Refrigerator – Store leftovers in an airtight container for up to 3 days.
• Freezer – Freeze baked or unbaked for up to 2 months.
• Reheating – Reheat in a 180°C oven until hot throughout. Remove any covering during the final 10 minutes to crisp up the potato topping.

Like this recipe? Check out more Pie and Quiche recipes –

Lemon Pepper Tuna Pie

Recipe by thecrumbstoriesCourse: MainCuisine: European

Servings

4

generous servings

Prep time

35

minutes

Cooking time

40

minutes

Resting time

10

minutes

This Lemon Pepper Tuna Fish Pie combines tender tuna, vegetables, and a creamy lemon-pepper sauce beneath a golden mashed potato topping. Comforting, flavourful, and perfect for a family dinner.

Ingredients

• For the Tuna

• 500 g tuna steaks, cut into chunks

• 1 tbsp olive oil

• 1 tsp crushed black pepper

• ½ tsp paprika

• ½ tsp garlic powder

• ¾ tsp salt

• ½ tsp lemon zest

• For the Vegetables

• 2 large onions, finely chopped

• 2 medium carrots, diced small

• ½ cup green peas

• 4 cloves garlic, minced

• For the Lemon Pepper Sauce

• 1½ tbsp butter

• 1 tbsp all-purpose flour

• 1 cup milk

• 1 cup chicken stock

• 1 tsp freshly crushed black pepper

• ½ tsp paprika

• 1 tbsp Dijon mustard

• 1 tbsp lemon zest

• Salt, to taste

• 2 tbsp chopped fresh parsley

• For the Potato Topping

• 750 g potatoes, boiled and mashed

• 1 tbsp butter

• 2–3 tbsp milk

• ½ tsp black pepper

• Salt, to taste

• ¼ cup grated cheese (optional)

Directions

• Prepare the Potato Topping
• Mash the boiled potatoes with butter, milk, salt, and black pepper until smooth and creamy. Set aside.
• Sear the Tuna
• Heat olive oil in a large pan over high heat.
• Season the tuna with black pepper, paprika, garlic powder, salt, and lemon zest.
• Sear for 1–1½ minutes per side, just until opaque on the outside.
• Remove from the pan and allow to cool slightly before shredding or chopping into bite-sized pieces.
• Build the Vegetable Base
• In the same pan, add the butter and a drizzle of olive oil.
• Add the garlic and cook for 30 seconds until fragrant.
• Add the onions and sauté until softened.
• Add the carrots and peas and cook for 2–3 minutes.
• Make the Lemon Pepper Sauce
• Sprinkle the flour over the vegetables and cook for one minute.
• Gradually pour in the milk and stock, stirring continuously to prevent lumps.
• Add the black pepper, paprika, Dijon mustard, and lemon zest.
• Simmer gently until the sauce thickens enough to lightly coat the back of a spoon.
• Season with salt and stir through the parsley.
• Assemble the Pie
• Gently fold the tuna into the sauce.
• Transfer the filling to a baking dish.
• Spread the mashed potatoes evenly over the top.
• Use a fork to create decorative ridges.
• Sprinkle with cheese if using.
• Bake
• Bake at 180°C (350°F) for 25–30 minutes, uncovered, until golden on top and bubbling around the edges.
• Allow the pie to rest for 10 minutes before serving.

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