Luxury Fish Pie With Cheesy Potato Rösti Topping

Total Time
1hr 40mins
Prep 1 hr
Cook 40 mins

This creamy dish is really easy and quite informal in a way yet made with luxury seafood and cheesy potato rosti topping instead of the regular mashed potato topping, it can be special enough for a smart dinner with family and close friends.

Ingredients Nutrition


  1. Pre-heat the oven to gas mark 7/425°F/220°C.
  2. You will need a baking dish about 5 cm deep of 2 litre capacity, well buttered.
  3. Start off by boiling the potatoes, with skin on, in a saucepan with enough salted water.
  4. Once boiled though, strain off the water and cover them with a clean tea towel to absorb the steam.
  5. Meanwhile, heat the stock in a medium saucepan, add the bay leaf and season it well.
  6. Then cut the fish in half, if they are large pieces, add it to the saucepan and poach the fish gently for 5 minutes (it should be slightly undercooked).
  7. Using a draining spoon, remove the fish to a plate and strain the liquid through a sieve into a bowl.
  8. In the same pan you cooked the fish in, melt in the butter, whisk in the flour and cook for 2 minutes.
  9. Then gradually add the strained fish stock little at a time, whisking all the time.
  10. When you have a smooth sauce, turn the heat to its lowest setting and let the sauce gently cook for 5 minutes.
  11. Then whisk in the double cream, followed by the gherkins and chopped parsley.
  12. Give it all a good seasoning and remove it from the heat.
  13. Now to make the rösti, peel the potatoes and, using the coarse side of a grater, grate them into long shreds into a bowl.
  14. Then add the melted butter and lightly toss everything together using 2 forks so that the potatoes get a good coat of butter.
  15. Now remove the skin from the white fish and divide it into chunks, quite large if possible, and combine the fish with the sauce.
  16. Next, add the raw scallops and prawns to the fish mixture then spoon it into the prepared baking dish.
  17. Sprinkle the rösti on top, spreading it out as evenly as possible but not pressing it down too firmly.
  18. Finish it off by scattering the grated cheese all over the surface.
  19. Bake on a high shelf of the oven for 35-40 minutes until golden brown.
  20. If you would like to make the fish pie in advance, then you will have to let the sauce cool down completely before adding the fish, scallops and prawns. After you have spread the topping, cover the dish loosely with clingfilm and refrigerate it until you're ready to bake. But you will have to give it an extra 10 minutes of cooking time.


Most Helpful

I'd always admired your photo for this recipe so when I craved a fish pie I knew which recipe I"d make! I used salmon, cod, and shrimp. I added a few min. to my prep by cooking each fish separately in my pressure cooker, as I thought the salmon would overtake the other fish flavors. The combo of fish really reminded me of decadent lobster! I only had American cheese but it was smooth and creamy in the potatoes. I omitted the gherkins and add a couple chopped hard boiled eggs (the eggs went great!). Even though there's a fair amount of steps in the recipe it is straight-forward and goes smoothly. It made a large casserole and my husband and I loved having the leftovers (reheats great in micro). Thanks so much A & A's mum for another great recipe.

Roxygirl in Colorado June 04, 2011

5 excellent stars ! I made this using both some cheaper blocks of frozen fish that needed using plus some fresh cod, and what are called cocktail shrimp here, which are kind of middle-sized ones. Since DH is the only scallop eater in this house I left those out and used home made vegetable stock, but for the rest followed the recipe to the letter. Ok.. maybe there was a bit more than 50g cheddar thrown in there on top. DH isn't a huge gherkin fan but loved this... I love gherkins and loved this! The combination of flavours was excellent and I will be serving this to guests soonest. Do take your time making the sauce, when I put in the flour everything lumped up in the first instance but slow and methodical stirring with a good whisk solved everything soon enough. Unil now I have only ever made rosti by grating raw potatoes, so this was a new twist, I decided to skip the hand grater and used the grating cutter on the food processor instead: result more like very rough mash.. but tasted fine. I'm not sure how well cooked potatoes would have really grated anyway. Since it all ends up covered in cheddar I doubt that it really matters too much in the end and I'll use the food processor next time too. Please see my rating system: a wonderful 5 stars for an impressively tasy dish. DO use the best fish or veggie stock you can, I'm sure it adds mega flavour to this kind of recipe. To be repeated... soon ! Thanks.

kiwidutch April 18, 2007

Brilliant ! Such a rich but tasty bake, perfect with freshly steamed green beans and peas!<br/><br/>I used haddock for the white fish and it worked really well. I also added a couple of pickled onions, sliced , and this added a bit more tartness to the occasional bites.

Veronique H. May 05, 2014

Join the Conversation

  • all
  • reviews
  • tweaks
  • q & a