10-Minute Mediterranean Tuna Salad with Lime Dijon Vinaigrette

Prep: 10 min6 servingsmediumMediterranean
10-Minute Mediterranean Tuna Salad with Lime Dijon Vinaigrette

A vibrant, protein-packed salad that transforms canned tuna into a Mediterranean feast with fresh herbs, crisp vegetables, and a zesty lime-sumac vinaigrette. Perfect for quick lunches, picnics, or light dinners when you want maximum flavor with minimal effort. The combination of Kalamata olives, fresh mint, and sumac gives this version an authentic Middle Eastern twist that sets it apart from typical mayo-based tuna salads.

Ingredients

6 servings
  • 2 ½ teaspoon Dijon mustard, good quality
  • 1 lime, zested
  • 1 ½ limes, juiced
  • cup extra virgin olive oil
  • ½ teaspoon sumac
    lemon zest1:1middle-easterncitrus

    adds bright tang

  • 1 pinch kosher salt
  • 1 pinch black pepper
  • ½ teaspoon red pepper flakes, crushed(optional)
  • 3 cans tuna, 5 ounces each
    chickpeas1:1vegetarianproteinfish-free

    plant-based option

    Full guide →
  • 2 ½ stalks celery, chopped
  • ½ English cucumber, chopped
  • 4 radishes, stems removed, chopped
  • 3 green onions, white and green parts chopped
  • ½ red onion, medium, finely chopped
  • ½ cup Kalamata olives, pitted, halved
    green olives1:1mediterranean

    milder flavor

    Full guide →
  • 1 bunch parsley, stems removed, chopped
  • 10 leaves fresh mint, stems removed, finely chopped

Instructions

  1. 1

    Whisk together Dijon mustard, lime zest, and lime juice in a small bowl

  2. 2

    Add olive oil, sumac, salt, pepper, and red pepper flakes if using, whisk until well-blended

  3. 3

    Combine tuna with chopped vegetables, olives, parsley, and mint in a large bowl

  4. 4

    Mix gently with wooden spoon

  5. 5

    Pour dressing over tuna mixture and mix to coat evenly

  6. 6

    Cover and refrigerate for 30 minutes before serving

  7. 7

    Toss gently to refresh before serving

Tips

Tip 1

Use high-quality tuna packed in olive oil for the best flavor and texture in this Mediterranean-style salad.

Tip 2

Let the salad chill for the full 30 minutes to allow the flavors to meld and develop properly.

Tip 3

Reserve some fresh herbs for garnish to add a pop of color and fresh aroma when serving.

Good to Know

Storage

Refrigerate covered for up to 3 days. Drain any excess liquid before serving.

Make Ahead

Can be made up to 1 day ahead. Add herbs just before serving for best color.

Serve With

Serve chilled on its own, over greens, or with pita chips and vegetables.

See pairing guide →

Common Mistakes

Watch

Drain tuna well to avoid a watery salad

Watch

Don't overdress initially - you can always add more dressing later

Substitutions

sumac
lemon zest1:1middle-easterncitrus

adds bright tang

Full guide →
Kalamata olives
green olives1:1mediterranean

milder flavor

Full guide →
tuna
chickpeas1:1vegetarianproteinfish-free

plant-based option

Full guide →
Find more substitutions →

FAQ

Can I use fresh tuna instead of canned?

Yes, sear 1 pound fresh tuna steaks, cool completely, then flake into chunks. The cooking time will increase but the flavor will be exceptional.

What if I can't find sumac?

Substitute with extra lime zest and a pinch of paprika. Sumac adds a unique tangy flavor, but the salad will still be delicious without it.

How long will this keep in the refrigerator?

The salad keeps well for up to 3 days covered in the refrigerator. The flavors actually improve after the first day as they meld together.