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Haddock baked with tomato, olive and caper

Haddock baked in a sharp tomato sauce with olives and capers.

By The foodose editorial team. Nutrition calculated from USDA FoodData Central. Checked on paper on 22 September 2026; not yet cooked in a test kitchen or photographed, so the times and yield are estimates. How we develop our recipes
What still needs a real kitchen
  • Confirm 160 g haddock fillets cook through in 10 to 14 minutes covered at 190°C
  • Photograph the finished pan
Time
About 42 min
estimated
Serves
2
see below
Energy
365 kcal
per serving
Protein
32 g
per serving
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Not yet photographed. The panel names the dish’s main ingredients rather than showing a picture we have not taken.

Ingredients for 2 servings

2 servings

Check off ingredients as you go.

Contains fish. Check the labels on packaged ingredients:

  • chopped tomatoes. Tinned tomatoes vary in added salt; the sodium figure uses a standard salted tin.
  • black olives. Olives are packed in brine and are salty; rinsing removes some of it.
  • capers. Capers are packed in salted brine or vinegar. Rinsing them lowers the salt; the figure here is for drained capers as the record gives them.

Cooking steps

  1. Heat the oven to 190°C / 375°F (170°C fan). Boil the potatoes for 15 to 18 minutes.

  2. Rinse the capers under cold water and drain them. This matters more than it sounds.

  3. Soften the sliced garlic in the oil in an ovenproof pan for 2 minutes, add the tomatoes and simmer for 12 minutes, until thickened.

  4. Stir in the olives and the rinsed capers.

  5. Lay the haddock fillets on top of the sauce, cover the pan and bake for 10 to 14 minutes.

    Cooked when: 63°C / 145°F, or until the flesh is opaque and flakes easily. A food thermometer is the reliable way to tell.

  6. Scatter the parsley over and serve with the potatoes.

The useful detail

Rinse the capers before they go in. Straight from the jar they carry enough salt to take over the sauce entirely, and once it is in there is no taking it out.

Make it work for you

One serving is 160 g of haddock with half the sauce and potatoes. You can switch to a smaller portion in the ingredients above; it is three quarters of this, and it contains correspondingly less energy and protein. It is an option, not a goal.

  • Cod instead of haddock

    Firmer and in larger flakes. The same timing.

    Per serving: about 15 kcal more, about 2 g more protein, about the same fat.

  • Leave out the olives

    Sharper and much lighter. Add a few more capers if you want the salt back.

  • Bread instead of potatoes

    Better for mopping the sauce, and a good deal more calories for the weight.

    Per serving: about 20 kcal more, about 2 g more protein, about 1 g more fat.

Estimated nutrition

Per standard serving, calculated from the ingredients above. Nutrition changes with substitutions, brands and how much oil stays in the pan.

A dinner where a very lean white fish carries the protein and the sauce supplies all the flavour without any fat beyond the oil.

Nutrition per serving
Energy365 kcal
Protein32 g
Fat11 g
of which saturates2 g
Carbohydrate37 g
of which sugars6 g
Fibre8 g
Sodium1,000 mg
Show calculation notes

Each ingredient’s weight is multiplied by its USDA FoodData Central values per 100 g. The whole recipe is added up and divided by 2. Raw weights are used for meat, fish and vegetables; beans and lentils are drained weights. All of the oil is counted as eaten. Added salt is not included; sodium from stock, bread, cheese and tinned food is.

Calculation, whole recipe
IngredientWeight usedSourceEnergyProtein
potatoes300 gFDC 170026Potatoes, flesh and skin, raw231 kcal6.1 g
garlic10 gFDC 169230Garlic, raw15 kcal0.6 g
olive oil14 gFDC 171413Oil, olive, salad or cooking121 kcal0.0 g
chopped tomatoes400 gFDC 170051Tomatoes, red, ripe, canned, packed in tomato juice64 kcal3.2 g
black olives50 gFDC 169094Olives, ripe, canned (small-extra large)58 kcal0.4 g
capers20 gFDC 172238Capers, canned5 kcal0.5 g
haddock320 gFDC 171964Fish, haddock, raw237 kcal52.2 g
parsley10 gFDC 170416Parsley, fresh4 kcal0.3 g
Whole recipeDivided by 2734 kcal63.4 g

Per serving the energy is rounded to the nearest 5 kcal, grams to the nearest whole gram and sodium to the nearest 10 mg. Calculation method 1.0, September 2026. How the calculation works.

Storage and reheating

In the fridge
Cool, cover and refrigerate within 2 hours of cooking. Eat within 3 to 4 days. The tomato base keeps on its own and will take a fresh piece of fish another day.
In the freezer
The FDA chart gives cooked fish 4 to 6 months in the freezer for best quality.
Reheating
Reheat until it reaches 74°C / 165°F, steaming hot throughout.

Checked against US Food and Drug Administration, Refrigerator and Freezer Storage Chart, USDA Food Safety and Inspection Service, Leftovers and Food Safety, FoodSafety.gov, Safe Minimum Internal Temperatures and FoodSafety.gov, Cold Food Storage Chart. UK guidance from the Food Standards Agency is shorter, at two days for most leftovers.

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