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Everyday foods

Vegan alternatives to tuna

Chickpeas · Nori or dulse flakes · Sunflower seeds

Swap matrix

Use these instead

Mashed chickpeas with vegan mayo and a sheet of crumbled nori is the classic tuna-mayo replacement — same texture, same sandwich, no bycatch.

Conversion ratios

SubstituteUse this muchGood to know
Chickpeas1 tin (240 g drained) = 1 tin tunaMash roughly, leave some texture.
Nori or dulse flakes1 tsp per tinSupplies the sea flavour.
Sunflower seeds50 g soaked and pulsedAdds the flaky, slightly oily bite.

Best uses

  • Sandwiches, jacket potatoes and wraps
  • Tuna-style pasta bake
  • Salad Niçoise
  • Melts on toast with vegan cheese

Why the swap works

The texture pulls apart and bites the same way once cooked and seasoned.

Where it does not work

Over-mashing turns it into hummus. Stop while chunks remain, and add the mayo last.

Kitchen notes

  • A spoon of caper brine or pickle juice adds the acidity tinned tuna has.
  • Finely diced celery and red onion give the crunch.
  • Dulse flakes are milder than nori if the sea flavour is too strong.

The numbers

Swapping one kilo saves about 6.1 kg CO₂e. Do it once a week for a year and you avoid roughly 79 kg CO₂e — the same as driving a petrol car 395 km.

Sources: Poore & Nemecek (Science, 2018), FAO, USDA FoodData Central, Mekonnen & Hoekstra (2011).

Common questions

What can I use instead of tuna in a sandwich?

Roughly mashed chickpeas with vegan mayo, nori flakes, capers and diced celery. It has more fibre and no mercury.

How do I make it taste of the sea?

Crumble half a nori sheet, or use a teaspoon of dulse flakes, plus a splash of caper or olive brine.

Is chickpea tuna high in protein?

Around 7 g per 100 g against 25 g in tinned tuna — add sunflower seeds or serve it on wholemeal bread with a side of beans.

Convert this recipe

Paste an ingredient list and we will rewrite the animal ingredients as vegan ones, with quantities kept as written.

In depth

The longer answer

Tuna’s role in cooking is twofold: it provides a firm, flaky protein structure and a distinct savoury, briny flavour that comes from its natural oils and salt content. A direct plant-based substitute is not obvious because no single vegetable mimics both the texture and the umami-rich taste. The challenge is to replicate the mouthfeel of cooked or canned tuna while delivering a similar savoury punch, which requires a combination of ingredients rather than a one-to-one swap.

The main plant-based options are chickpeas, young jackfruit, and commercial products made from soy or pea protein. Chickpeas mash into a flaky, firm texture but lack brininess; jackfruit shreds to resemble tuna flakes but needs seasoning. Commercial alternatives often include seaweed for ocean flavour and oils for richness. Price-wise, homemade versions are cheaper, while store-bought can cost more than canned tuna. Environmentally, all plant-based options have a significantly lower carbon and water footprint than wild-caught or farmed tuna.

To make a convincing tuna substitute, start with canned chickpeas or young jackfruit, mash or shred them, then season generously with nori flakes, soy sauce, lemon juice, and a touch of olive oil. For a creamy tuna salad, add vegan mayonnaise and diced celery. The result works well in sandwiches, salads, or on crackers, but it will not fool anyone expecting raw tuna in sushi. Accept that the texture is softer and the flavour is milder; the trade-off is a lighter, more sustainable meal.

At a glance

Quick facts

Quick factstuna
DetailWhat to know
Key texture sourceChickpeas or jackfruit
Umami boostNori, soy sauce, miso
Fat replacementOlive or avocado oil
Carbon footprint80-90% lower than tuna
Common binderVegan mayonnaise

In practice

What this means for you

  • Mash chickpeas with a fork for a flaky, tuna-like texture.
  • Add crumbled nori sheet for authentic ocean flavour.
  • Use a splash of lemon juice to brighten the taste.
  • Chill the mixture for 30 minutes to let flavours meld.
  • Serve in a sandwich with lettuce and tomato for crunch.

FAQ

Common questions

Can I use this in sushi rolls?
Not really. The texture is too soft and moist for raw-style sushi. For a plant-based sushi filling, try marinated tofu or seasoned shredded carrot instead.
What is the best store-bought vegan tuna?
Brands like Good Catch and Loma Linda offer convincing options made from pea or soy protein. They include seaweed for flavour and have a firm, flaky texture close to canned tuna.
How do I get a stronger fishy taste?
Add a few drops of liquid smoke or a pinch of kelp powder. Some people also use capers or a tiny bit of dulse flakes for extra brininess.
Is this cheaper than real tuna?
Yes, homemade versions using chickpeas or jackfruit cost significantly less than canned tuna. Commercial vegan tuna is often pricier, but still competitive with premium tuna brands.

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