Garlic Fish Pie with Creamy Mash

One of British cuisine's most comforting dishes. This isn't a pastry-encased pie, but a rich, creamy fish stew topped with a duvet of golden-baked mashed potato. Garlic works in the background here, adding depth to the sauce and character to the mash. A truly satisfying one-pot meal.
🕒 Prep Time 25 mins
🍳 Cook Time 35 mins
Total Time 1 hr
🍽️ Servings 4 servings
🔥 Calories 680 kcal
🌍 Cuisine British

Ingredients

Equipment Needed

  • Deep baking dish
  • Potato masher
  • Skillet
  • Pot for potatoes

Allergen Information

⚠️ Fish
⚠️ Milk
⚠️ Egg
⚠️ Wheat

Instructions

1

Peel and cube potatoes, boil in salted water until tender. Drain and let steam dry. Mash with half the butter, sour cream, and 2 cloves of minced garlic.

Tip: Steaming off excess water ensures the mash is fluffy, not watery.
2

Meanwhile, place fish fillets in a skillet and cover with milk. Bring to a boil, reduce heat, and poach gently for 5-6 minutes until opaque. Remove fish; SAVE THE MILK!

Tip: The poaching milk absorbs fish flavor and becomes the base for the sauce.
3

Sauté chopped onion and remaining 2 garlic cloves in remaining butter. Sprinkle with flour, cook 1 minute, then gradually whisk in the 'fishy' milk until thickened (béchamel).

Tip: The roux (flour+butter) must be cooked to remove raw taste.
4

Flake fish into the baking dish. Scatter with peas and chopped boiled eggs. Pour garlic sauce over and fold gently.

Tip: Hard-boiled eggs are a classic fish pie element adding texture.
5

Spread mashed potato over the top. Rake with a fork to create ridges (these will brown nicely).

Tip: Ensure mash seals the edges to prevent sauce from bubbling over.
6

Bake at 400°F (200°C) for 25-30 minutes until golden and bubbling.

Recipe FAQ

The fish fell apart, is that bad?
No, it should be in bite-sized chunks in the pie anyway.
What fish should I use?
Cod, haddock, or any firm white fish. Avoid pangasius as it's too watery.

Ingredients

  • 1.1 lbs White Fish Fillet (e.g., Cod)
  • 1.75 lbs Potatoes (starchy, like Russet)
  • 1.25 cups Milk
  • 0.5 cup Sour Cream
  • 2 large Hard Boiled Eggs
  • 3.5 tbsp Butter
  • 1 whole Red Onion
  • 4 cloves Garlic
  • 5 oz Frozen Peas
  • 1 tbsp All-Purpose Flour
  • 1 tsp Salt
  • 1 tsp Pepper