Oaty fish & prawn gratins

Oaty fish & prawn gratins

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(24 ratings)

Prep: 12 mins Cook: 28 mins


Serves 2

These easy prawn and tomato bakes make a delicious supper for two and can be made in just three easy steps. They're even low in calories and fat

Nutrition and extra info

Nutrition: per serving

  • kcal359
  • fat6g
  • saturates2g
  • carbs27g
  • sugars9g
  • fibre8g
  • protein48g
  • salt3.4g
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  • 340g bag baby spinach, roughly chopped
  • 400g can chopped tomato with garlic and herbs
  • 225g sustainable white fish fillets, chopped into large chunks
  • small bunch basil, shredded



    Most closely associated with Mediterranean cooking but also very prevalent in Asian food, the…

  • 100g cooked and peeled prawn



    There are thousands of different species of prawn, but tiger, king and North Atlantic are the…

  • 2 tbsp finely grated parmesan



    Parmesan is a straw-coloured hard cheese with a natural yellow rind and rich, fruity flavour. It…

  • 2 tbsp breadcrumb
  • 2 tbsp oats
    Two piles of oats



    Oats are processed by rolling (steamed and pressed) or steel-cutting (cut into pieces). There is…

  • 170g broccoli, boiled or steamed, to serve



    Like cabbage and cauliflower, broccoli is a brassica and is sometimes known by its Italian name…


  1. Put the spinach in a large colander and pour over boiling water. Once cool enough to handle, squeeze out any excess water, then season.

  2. Tip the tomatoes into a frying pan with some seasoning and simmer for 5 mins to thicken. Add the fish and heat for 1-2 mins – it doesn’t need to be fully cooked at this point. Stir in the basil.

  3. Heat oven to 220C/200C fan/gas 7. Divide the spinach, fish, prawns and tomato sauce between 2 gratin dishes. Mix the Parmesan, breadcrumbs and oats together and sprinkle over the top. Bake for 20 mins until golden and bubbling. Serve with cooked broccoli.

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Comments, questions and tips

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1st Mar, 2013
That's served with baby new potatoes and healthy!!
1st Mar, 2013
Really tasty little dish and healty to boot! Seved with baby we potatoes & broccoli, will definitely be making again!
28th Feb, 2013
Can I use raw prawns in this recipe? If so can I add them to the rest of the ingredients before being baked, or should I cook them first? I don't want food poisoning!
30th Jul, 2012
Liked this recipe and will be making again.
17th May, 2012
Lovely idea, and certainly very healthy, but needed a bit moore oomf. I like Julie's suggestion of adding pesto and Sarah's suggestion of chilli flakes. I also used frozen cod and prawns and perhaps didn't drain them properly during defrosting and before assembling, which made for a rather watery consistency. The oaty topping was nice, though. Will make again....with some adjustments.
12th May, 2012
Didn't think this was good at all. For some reason the combination of the fish, prawns and gratin just didn't work. A big disappointment.
18th Apr, 2012
Added some chilli flakes for a bit of a kick, will definitely be making again.
Frantic Flapjack
12th Apr, 2012
Loved this. Made exactly as the recipe but doubled up to feed 4. Definitely a keeper.
5th Mar, 2012
I also wasn't too sure about this but it turned out to be a nice dish. I didn't have any fresh basil so I used dried and stirred in a teaspoonful of pesto as well.
brianmellor's picture
5th Mar, 2012
I was sceptical at first with this one, however I am now making it for the second time in a month. Lovely dish.


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