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Keto Fish Pie

British comfort food made keto. Creamy fish filling under a golden cauliflower mash topping.

Keto Fish Pie
Prep
25 mins
Cook
35 mins
Servings
6
Difficulty
medium

Instructions

Instructions

  1. Make the cauliflower mash. Steam cauliflower until very tender. Drain well. Mash with butter, cheese, salt, and pepper. Set aside.

  2. Preheat oven. Set to 200°C (400°F).

  3. Cook the leek. Melt half the butter in a large oven-safe pan. Cook leek until soft, about 5 minutes.

  4. Make the sauce. Add cream, stock, and mustard. Bring to a simmer. Cook until slightly thickened, about 5 minutes.

  5. Add the fish. Gently fold in white fish, smoked salmon, and prawns. Cook for 2 minutes just to start cooking the fish. Add dill, salt, and pepper.

  6. Top with mash. Spoon cauliflower mash over the filling. Spread evenly. Dot with remaining butter.

  7. Bake. Cook for 25-30 minutes until golden and bubbling.

Tips

  • Don’t overcook the fish before baking—it will finish in the oven
  • Squeeze cauliflower dry for less watery mash
  • A blowtorch can brown the top if needed

Variations

  • Add hard-boiled eggs to the filling
  • Use salmon instead of mixed fish
  • Top with parmesan for extra crispiness

Notes

  • This is a make-ahead hero—assemble, refrigerate, bake when ready
  • Leftovers reheat beautifully
  • Traditional British comfort food, made healthy

Source

Adapted from Ruled.Me. This is our version with a simpler cauliflower topping.