Cheesy seafood gratin

Cheesy seafood gratin

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(3 ratings)

Prep: 10 mins Cook: 30 mins


Serves 2
We used salmon and haddock in this creamy oven bake, but use your favourite fish of choice

Nutrition and extra info

Nutrition: per serving

  • kcal578
  • fat37g
  • saturates14g
  • carbs19g
  • sugars11g
  • fibre5g
  • protein41g
  • salt3g
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  • 2 tsp olive oil
    olive oil

    Olive oil

    ol-iv oyl

    Probably the most widely-used oil in cooking, olive oil is pressed from fresh olives. It's…

  • 3 leeks, halved and thinly sliced



    Like garlic and onion, leeks are a member of the allium family, but have their own distinct…

  • ½ small pack parsley, finely chopped



    One of the most ubiquitous herbs in British cookery, parsley is also popular in European and…

  • 250g fish pie mix (ours contained haddock and salmon)
  • 2 tsp wholegrain mustard
  • 350ml pot cheese sauce
  • wholemeal bread to serve


  1. Heat oven to 200C/180C fan/gas 6 and heat the oil in a large frying pan. Add the leeks and some seasoning, and cook for 10 mins until really soft. Stir in half the parsley and spoon into 2 gratin dishes.

  2. Divide the fish between the 2 dishes, mix the mustard into the cheese sauce and spoon over the top of the fish. Place on a baking tray and cook for 15 mins – you can put the bread in the oven to warm through for the last few mins if it is a little stale. Remove the bread from the oven and turn the grill on to brown the tops of the gratin for 2 mins, then remove from the oven. Scatter the gratin with the remaining parsley and serve with chunks of bread to mop up.

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Comments, questions and tips

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thecherub's picture
14th Nov, 2013
Made this last night. It was fab! So simple and quick too. I agree that making a sauce is easy so could do that instead of buying jars of the stuff. Was going to add wine but couldn't as OH drank it all! Will try adding wine to the leeks next time though.
21st Oct, 2013
Made this last night, added some prawns and it was delicious. Will definitely make this again.
13th Oct, 2013
We made this last night, delicious! We made our own cheese sauce and used some white wine with the leeks, but a very quick meal with little effort.
28th Sep, 2013
that, to me, is not cooking....if you buy a sauce in, you aren't learning a new skill, and that is what cooking is all about
15th Sep, 2013
Made this tonight but adapted the recipe. Cooked the leeks in some white wine and a bit of stock for extra flavor. Poached the fish in milk for 5 mins before adding to the dish. Used the poached milk to make my own cheese sauce, keeping all the flavor. Finally I blitzed up some breadcrumbs for a topping. Yummy!!!
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