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Tuna and white bean stuffed peppers

Roasted peppers filled with tuna, beans and fresh parsley.

By The foodose editorial team. Nutrition calculated from USDA FoodData Central. Checked on paper on 12 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 the filling fills four pepper halves
  • Photograph the finished peppers
Time
About 50 min
estimated
Serves
2
see below
Energy
290 kcal
per serving
Protein
28 g
per serving
Jump to recipe
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.

Cooking steps

  1. Heat the oven to 190°C / 375°F (170°C fan). Put the pepper halves cut side up in a dish and roast for 15 minutes.

  2. Meanwhile, warm the oil in a pan and cook the onion for 5 minutes. Add the tomatoes and beans and simmer for 5 minutes, crushing a few beans to thicken the mixture.

  3. Take the pan off the heat and fold in the tuna and parsley, keeping the flakes reasonably large.

  4. Spoon the filling into the peppers and bake for 15 to 20 minutes, until the peppers are tender and the filling is hot all the way through.

    Cooked when: 74°C / 165°F, steaming hot throughout. A food thermometer is the reliable way to tell.

The useful detail

Fold tuna in gently to retain some flakes. Stirred into hot sauce it breaks down into threads, and the filling loses the one ingredient you are meant to notice.

Make it work for you

One serving is Two filled pepper halves. 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.

  • Tinned salmon instead of tuna

    Richer and softer in flake.

    Per serving: about 50 kcal more, about 5 g more protein, about 3 g more fat.

  • Chickpeas instead of white beans

    Firmer, and they do not crush into the sauce.

    Per serving: about 25 kcal more, about the same protein, about 2 g more fat.

  • Courgette halves instead of peppers

    Milder and wetter; scoop them out and roast them for 12 minutes first.

    Per serving: about 15 kcal less, about the same protein, about the same 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 filled vegetable where the peppers are most of the weight. Tinned tuna in water is almost pure protein, which keeps the plate light.

Nutrition per serving
Energy290 kcal
Protein28 g
Fat6 g
of which saturates1 g
Carbohydrate33 g
of which sugars9 g
Fibre9 g
Sodium620 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
red pepper300 gFDC 170108Peppers, sweet, red, raw78 kcal3.0 g
olive oil9 gFDC 171413Oil, olive, salad or cooking80 kcal0.0 g
onion60 gFDC 170000Onions, raw24 kcal0.7 g
chopped tomatoes100 gFDC 170051Tomatoes, red, ripe, canned, packed in tomato juice16 kcal0.8 g
white beans180 gFDC 175204Beans, white, mature seeds, canned205 kcal13.1 g
tinned tuna200 gFDC 173709Fish, tuna, light, canned in water, drained solids (Includes foods for USDA's Food Distribution Program)172 kcal38.9 g
parsley5 gFDC 170416Parsley, fresh2 kcal0.1 g
Whole recipeDivided by 2577 kcal56.5 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.
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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