Tuna Caper Salad

Ingredients

• 425 g (15 oz), drainedcanned tuna in spring water
• 1cucumber, finely diced
• 1 largetomato, finely diced
• ⅓ cup (about 50 g)red onion, finely diced
• ¼ cup (about 35 g)capers, finely chopped
• ¾ cup (about 180 g)plain Greek yoghurt
• 1 tablespoon (15 ml)Dijon mustard
• 2 tablespoons (30 ml)lemon juice
• to tastesalt and pepper
• 2 tablespoonsfresh basil, chopped

Instructions

1. 1

   Dice the vegetables

   Finely dice the cucumber, tomato and red onion.

2. 2

   Flake the tuna

   Put the tuna in a mixing bowl and break it into smaller flakes with a fork.

3. 3

   Mix the salad

   Add the diced vegetables, capers, Greek yoghurt, Dijon mustard, lemon juice, salt and pepper. Mix gently until combined.

4. 4

   Chill or serve

   Serve straight away, or refrigerate for 30 minutes to let the flavours develop.

5. 5

   Add the basil

   Scatter the chopped fresh basil over the salad before serving, if desired.

What is tuna caper salad?

Tuna salad is a familiar American lunch, often served in a sandwich or alongside crisp greens. This version brings a briny note from capers and uses Greek yoghurt for a creamy, tangy dressing.

Cucumber and tomato give the mixture freshness and crunch, while lemon and Dijon sharpen the flavour. It is a quick, no-cook option when you want a filling lunch without much preparation.

Nutrition and macros by portion

The nutrition label shows one serving as written: 133 calories, 24g protein, 8g carbs, 1g fat.

Tuna provides most of the protein, while the vegetables and yoghurt contribute some of the carbohydrates. The yoghurt supplies most of the fat in this lean version, and a serving of wholegrain bread or extra salad greens can make the meal more substantial.

Choose the tuna and yoghurt

Tuna: Drain it well so the dressing stays creamy rather than watery. Spring-water tuna keeps the flavour clean and lets the capers, lemon and herbs stand out.

Yoghurt: Plain Greek yoghurt gives the salad its body and tang. Stir it in gently so the tuna stays flaky rather than becoming a paste.

Keep the vegetables crisp

Even pieces: Dice the cucumber, tomato and onion finely so they distribute through the tuna. This also makes the salad easier to scoop into bread or lettuce leaves.

Juicy tomato: If the tomato is especially watery, remove some of its seeds before dicing. This helps prevent excess liquid from collecting at the bottom of the bowl.

Balance the dressing

Capers: Chop them finely so their salty, sharp flavour reaches each bite. Since capers are already briny, taste the mixture before adding much salt.

Lemon and mustard: Lemon juice brightens the yoghurt, while Dijon adds a gentle savoury kick. Mix these through evenly, then adjust seasoning to taste.

Mix gently and check the texture

Gentle folding: Break up the tuna with a fork, then fold in the remaining ingredients without crushing the flakes. A few larger pieces give the salad a pleasing texture.

Doneness cue: The finished mixture should hold together on a spoon but still look moist and distinct, not smooth or soupy. Drain the tuna thoroughly and avoid overmixing if it seems loose.

Allow time for the flavours

Serve now: The salad is ready as soon as it is mixed, with the vegetables at their crispest.

Chill: A 30-minute rest in the fridge lets the lemon, mustard and capers mingle with the yoghurt. Add the basil just before serving for its fresher aroma.

Serve it your way

Sandwiches: Spoon the salad into bread or a roll for a simple packed lunch. Add lettuce if you want extra crunch.

Lettuce wraps: Use sturdy lettuce leaves as a lighter, crisp base. It also works as a topping for a green salad or a filling for jacket potatoes.

Recipe notes & tips

• Drain the tuna thoroughly before adding it to the bowl.
• Chop the vegetables to a similar small size for an even mix.
• Taste before salting because capers can be quite briny.
• Fold rather than stir vigorously to keep some tuna flakes intact.
• Add the basil at the end to preserve its fresh flavour.

Variations

• Add celery: Finely dice it for extra crunch.
• Use dill: Swap the basil for chopped fresh dill for a different herbal note.
• Add black pepper: Grind it over the salad just before serving for a sharper finish.
• Make it spicier: Stir in a little chilli to bring gentle heat.
• Serve with greens: Spoon the salad over lettuce or mixed leaves for a fresh bowl.

Common mistakes to avoid

• Wet tuna: Drain it well first so it does not thin the yoghurt dressing.
• Overmixing: Fold gently to keep the tuna flaky.
• Large vegetable chunks: Dice the cucumber, tomato and onion finely for an even texture.
• Too much salt: Taste after adding capers, then season gradually.
• Soft basil: Add it just before serving so it stays aromatic.

How to store

Keep the salad in an airtight container in the fridge and eat within 2 days. Stir gently before serving; it is best served cold and does not need reheating.

Frequently asked questions