Easy Fisherman’s Pie A Fantastic Fish Casserole

If you love comforting pie dishes, this Fishermans Pie is a must-try, giving the Shepherd’s Pie a run for its money! Loaded with flaky fish, tender veggies, a cheese and mustard sauce, mashed potato topping, and a melted cheese crust!

It’s no surprise that Fisherman’s Pie, also called Fish Pie, is a staple menu item for pubs in Ireland, England, and Scotland. This traditional British dish is a wholesome meal with a balance of meat and veggies with an irresistible cheese and mustard sauce.

Serve your Fish Pie with garlic bread, salad, or grilled veggies. 

🗝️ Recipe’s key points

• This fish pie is easily customizable with different veggies, a choice or your favorite fish, and much more!
• It’s a budget-friendly dish made with simple ingredients – perfect for weeknight family meals. 
• Fisherman’s pie is comfort food at its best! Even the picky eaters will ask for seconds!

This mouth-watering fish pie is a complete meal, combining flaky fish, tender veggies in a cheese and mustard sauce, a creamy mashed potato topping, and a crispy melted cheese crust. It couldn’t get better than this!

🛒 Ingredients

This is an overview of the ingredients. You’ll find the full measurements and instructions in the recipe card (printable) at the bottom of the page.

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🗒 Instructions

This is an overview of the instructions. Full instructions are in the recipe card at the bottom of the page.

1. Boil cubed potatoes in a large pot until fork tender (about 15-20 minutes). Drain the water. 
2. Mash the potatoes with butter, milk, and salt, until smooth and creamy. 
3. Set the mash aside. 
4. Add butter to a large skillet and melt over medium heat.

5. Add the carrots, green onions, and garlic. 
6. Cook for 2 minutes.
7. Sprinkle the flour over the veggies and stir. The raw flour smell should disappear after 2 minutes. 
8. Slowly pour in the remaining milk, whisking continuously until smooth and thick, about 3 minutes.

9. Add shredded cheese, mustard, and dill to the sauce.
10. Stir until the cheese melts and then add the fish, gently stirring and cooking until it begins to warm, about 1-2 minutes. 
11. Stir in the peas and season with the remaining salt and pepper.
12. Pour the filling into a casserole dish. I’ve used a 9×13-inch ovenproof dish.

13. Top the filling with mashed potatoes. Smooth it out with a spoon and rough up the top slightly with a fork. 
14. Sprinkle the top with the remaining cheddar cheese.

15. Bake the fisherman’s pie at 350 degrees F for 30-35 minutes. Sprinkle the top with chopped dill and serve!

🥫 Storage

Store leftover Fisherman’s pie in the casserole dish, covered, or in an airtight container in the fridge for 3-4 days. Reheat single portions in the microwave on high or in the oven for 20-25 minutes at 400 degrees F when reheating larger portions. 

Technically, you can freeze this dish pie, although I don’t recommend freezing it since the fish will release liquid from the freezing and thawing process, and mashed potato also changes in texture from this process. 

📚 Variations

• Experiment with different types of fish, such as cod, halibut, haddock and salmon, or a mixture of these.
• Use yellow mustard instead of Dijon mustard, if you prefer. 
• Add other veggies to this sea pie, such as spinach, kale, sweetcorn, chopped florets of broccoli or cauliflower, and celery. 
• Make this dish gluten-free by making a cornstarch slurry instead of using regular flour to thicken the sauce. 
• Chopped chives are a great substitute for dill. 
• Top this fish pie with mashed sweet potatoes instead of regular mashed potatoes. 
• Add shrimp to your fisherman’s pie for a more intense seafood version.

👩🏻‍🍳 Tips

• Make this fish pie in advance by assembling without baking. Cover the assembled pie with plastic wrap and store it in the fridge for a day or two. Bake the pie just before serving. 
• Regardless of the type of fish used for your pie, make sure that it’s boneless to avoid any issues and choking hazards. 
• It’s important to drain the boiled potatoes well before making the mash, or this can add unnecessary liquid to the fish pie. 
• Your fish must not have a “fishy” smell when you purchase it, or it could be an indicator that it isn’t fresh. Always check fish and seafood is fresh to avoid food poisoning. 
• Frozen fish filets can be used in this fish pie.

🤔 FAQs

• Meat Lovers Shepherd’s Pie Recipe – This delicious Shepherd’s Pie is every meat-lover’s dream. It’s similar to fish pie with its meaty filling with veggies and sauce, topped with mashed potato. 
• Easy Baked Spaghetti Pie – This Baked Spaghetti Pie turns regular spaghetti into a delectable pie – perfect for weeknight meals, and it freezes well too!
• Italian Easter Meat Pie – This Italian Easter Meat Pie is similar to a quiche with pie dough crust bottom and top, loaded with egg-custard filling, cheese, and meat.

🍽 What to serve with Fisherman’s Pie

Serve this fish pie with garlic bread or a light side salad. Lemon Garlic Asparagus With Parmesan or an assortment of Grilled Vegetables will also make a delicious addition to this hearty meal. 

🔪 All Our Way recommends the following

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You’ll need the following items to make this recipe successfully.

• Casserole baking dish – 13X9-inch
• Large pot– for boiling the potatoes
• Potato masher
• Large skillet– for cooking the sauce and filling layer
• Dry Measuring cups
• Liquid Measuring cup
• Dry measuring spoons
• Cheese grater
• Sharp knife
• Cutting board

📞 Chiacchierata (chat)

This mouthwatering twist on classic Cottage pie takes your taste buds on a deep-sea adventure. Dive into layers of tender, flakey cod fillets, creamy mashed potatoes, and savory spices that’ll have you hooked from the first bite.

If you want to shake up dinnertime with a delicious surprise, this irresistible Fisherman’s Pie is it. Say goodbye to predictable flavors and hello to this Irish version of the traditional Cottage pie.

Tutti a tavolo, è pronto!

If you love this recipe please give it 5 stars ⭐️⭐️⭐️⭐️⭐️.

What’s new? Check out my All Our Way Store on Amazon. We’ll be adding more items we love and use or wish we had to make
cooking fun and easy.

📖 Recipe

Classic Fisherman’s Pie

Fisherman’s Pie is a complete meal, combining flaky fish, tender veggies in a cheese and mustard sauce, a creamy mashed potato topping, and a crispy melted cheese crust!

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Course: seafood main dish

Cuisine: American, English

Prep Time: 30 minutes minutes

Cook Time: 55 minutes minutes

0 minutes minutes

Total Time: 1 hour hour 25 minutes minutes

Servings: 8 servings

Calories: 383kcal

Author: Marisa Franca @ All Our Way

As An Amazon Associate I earn from qualifying purchases.

Ingredients

For the mashed potatoes:

• 2 pounds potatoes peeled and cut into cubes
• 3 tablespoons unsalted butter
• ⅔ cup milk
• ½ teaspoon salt

For the Fish Pie:

• 3 tablespoons unsalted butter
• 3 green onions cut into ½-inch pieces on the diagonal
• 2 medium carrots chopped
• 2 cloves garlic minced
• 3 tablespoons all-purpose flour
• 2 cups milk
• 2 cups white cheddar shredded and divided
• 1 teaspoon Dijon mustard
• 2 tablespoons fresh dill chopped
• 2 pounds fish such as cod, halibut, or salmon, cut into 2-inch pieces
• 1 cup frozen peas
• ½ teaspoon black pepper
• ½ teaspoon salt

Instructions

• Preheat the oven to 350 degrees F.

• Bring a large pot of water to a boil.

• Add the cubed potatoes to the boiling water and cook until the potatoes are fork tender, about 15-20 minutes.

• Drain the potatoes. Place the drained potatoes back into the pot or into a large mixing bowl.

• Add the 3 tablespoons of the butter, ⅔ cup of the milk, and ½ teaspoon of the salt to the potatoes and mash until creamy.

• In a large skillet, melt the remaining butter over medium heat.

• Add the green onions, the carrots, and the garlic and cook for 2 minutes.

• Sprinkle the flour over the veggie mixture and stir, cooking until the raw flour smell disappears, about 2 minutes.

• Slowly pour the remaining milk into the skillet, whisking constantly until smooth and thickened, about 3 minutes.

• Add 1 cup of the cheddar cheese, the mustard, and the dill to the sauce and stir until the cheese melts.

• Add in the fish, gently stirring and cooking until beginning to warm, about 1-2 minutes.

• Stir the peas into the fish mixture. Season with the remaining salt and pepper.

• Pour the filling into a 9×13-inch ovenproof dish.

• Top the fish filling with the mashed potatoes, smoothing it out with a spoon and roughing up the top with a fork.

• Sprinkle the top of the mashed potatoes with the remaining cheddar cheese.

• Place the dish on a baking pan and bake until the top starts to golden, about 30-35 minutes. Sprinkle the top with a little chopped dill. Serve.

Nutrition

Calories: 383kcal | Carbohydrates: 11g | Protein: 34g | Fat: 23g | Saturated Fat: 13g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 5g | Trans Fat: 0.3g | Cholesterol: 117mg | Sodium: 586mg | Potassium: 604mg | Fiber: 2g | Sugar: 6g | Vitamin A: 3417IU | Vitamin C: 9mg | Calcium: 330mg | Iron: 1mg

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