Tuna with peppery tomatoes & potatoes

Tuna with peppery tomatoes & potatoes

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(30 ratings)

Prep: 10 mins Cook: 25 mins


Serves 4
Sweet peppers make a great addition to grilled meats and fish. A great al fresco meal with fresh flavours

Nutrition and extra info

  • Omega-3, 2 of 5-a-day, veg can be frozen
  • Easily halved

Nutrition: per serving

  • kcal371
  • fat11g
  • saturates2g
  • carbs31g
  • sugars11g
  • fibre4g
  • protein40g
  • salt0.48g
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  • 4 tuna steaks
  • 1 tbsp 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 garlic cloves, crushed
  • few thyme sprigs


    This popular herb grows in Europe, especially the Mediterranean, and is a member of the mint…

  • 500g bag new potato, sliced about 1cm thick
    New potatoes

    New potatoes

    n-ew po-tate-oes

    New potatoes have thin, wispy skins and a crisp, waxy texture. They are young potatoes and…

  • 2 red peppers, cut into large chunks
  • 1 red onion, cut into eighths
  • 1 green chilli, deseeded and chopped
  • 400g can cherry tomato


  1. Heat oven to 220C/fan 200C/gas 7 and put in a roasting tin to heat up. Put the tuna in a shallow dish with half the oil, two-thirds of the garlic and leaves from 1 sprig of thyme. Leave to marinate while you cook the veg.

  2. Put the potatoes, peppers, onion and chilli into the roasting tin with the remaining oil, toss to coat, then roast for 20 mins. The potatoes should be tender or very nearly there. If not, give them another 5 mins (the cooking time can depend on the variety of potato). Add the remaining garlic and thyme to the pan, let them sizzle, stir in the tomatoes, then cook for 5 mins more until the sauce has reduced a little. Season to taste.

  3. With a few mins to go, heat a griddle or frying pan, wipe most of the garlic marinade off the fish with kitchen paper, season, then sear for 1 min each side for medium or longer if you prefer. Serve on top of the veg.

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Comments, questions and tips

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7th Feb, 2009
Love this recipe - so simple but delicious
4th Feb, 2009
This recipe was soooooooooo goooooooooooood - it was a good dinner that was really light. I cooked the tuna for less than a minute each side for the thinner steaks because they have to remain pink in the middle to be at their most delicious! I didn't have any problems with the potatoes taking longer than anything - I followed the recipe exactly and everything turned out perfect! I think I added more thyme than the recipe said but that's about all i changed!
29th Jan, 2009
This was delicious......I used a combination of cherry tomatoes and a small tin of chopped tomatoes, added five mins from the end with the garlic, chilli & extra thyme. Would definitely do again.
28th Dec, 2008
This is a fantastic supper dish. Easy to make and delicious. parboiling is definitely the eay to go. Sainsbury's also sell cherry toms in tins. have made this loads of times already.
14th Dec, 2008
Asda sell tinned cherry toms too. I agree that method has several timing issues,potatoes definately need par boiling before roasting even when cut 1 cm or less. Finished dish was fab though
17th Sep, 2008
Really enjoyed this, particularly the marinated tuna. Parboiled the potatoes as recommended but the veg still took twice as long as suggested to roast till nice and soft. Would definitely make again. To the person who couldn't find them - they sell tinned cherry tomatoes in Waitrose.
12th Sep, 2008
This recipe was really lovely... although I did have to par boil the potatoes. I didn't add the chilli but instead used 1-2 tbsp balsamic vinegar to add more flavour to the sauce. I would definately make this again.
1st Sep, 2008
Delicious. Really fresh tasting. I found the potatoes were cooked in the prescribed time - perhaps others overlooked the instruction to slice the potatoes into 1cm thick slices?
27th Aug, 2008
A very nice dish. I didn't have tinned cherry tomatoes so I used a combination of tinned chopped tomatoes and cherry tomatoes. Also used chilli flakes rather than fresh chilli. Enjoyed by all the family.
10th Jul, 2008
Hm. I'm interested in trying this recipe but having read the comments I'm a bit wary - am I the only one whose never come across a tin of cherry tomatoes? I keep looking around when I'm outand about and can't seem to see them


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