Mediterranean Tuna Salad

Last summer, my neighbor Elena brought this salad to our rooftop potluck and I honestly couldnt stop eating it. She told me her grandmother makes it differently every time depending on what's in the garden. Now I keep cans of tuna in the pantry just so I can whip it up when the craving hits on busy weeknights.

I made this for my sister when she was recovering from surgery and she texted me three days later asking for the recipe. Something about the fresh basil and roasted red peppers makes it feel special even though it's so simple to throw together.

Ingredients

• Tuna in water: I've tried oil-packed but water lets the dressing shine through without making it too heavy
• Cherry tomatoes: When they're in season they burst in your mouth but even grocery store ones work beautifully here
• English cucumber: Fewer seeds and better crunch than regular cucumbers plus no need to peel them
• Red onion: Thin slices are key so you get that sharp bite without it overwhelming everything else
• Roasted red peppers: Jarred ones are totally fine and honestly taste better than roasting your own sometimes
• Fresh parsley and basil: Don't skip the fresh herbs they're what makes this taste like something from a restaurant
• Kalamata olives: Their rich salty punch is nonnegotiable for that authentic Mediterranean flavor
• Capers: These little briny buds add a bright tang you can't quite put your finger on but definitely notice when they're missing
• Extra virgin olive oil: Use the good stuff here since it's one of the main flavor components
• Fresh lemon juice: Bottled just doesn't have the same bright acid that cuts through the rich tuna
• Dijon mustard: Helps the dressing emulsify and adds just the right amount of sharpness
• Fresh garlic: One clove is perfect any more and it starts to compete with the delicate herbs
• Dried oregano: Dried actually works better than fresh here it has that earthy quality that reminds me of Greek island cooking

Instructions

Prep your vegetables:

Halve the tomatoes, dice the cucumber into small bite-sized pieces, and slice the red onion as thinly as you possibly can. Chop the roasted red peppers into strips and roughly chop the parsley and basil.

Combine everything:

In a large mixing bowl, add the drained tuna, all your prepped vegetables, herbs, olives, and capers. I like to use my hands to gently toss everything together so the tuna stays in nice flakes rather than turning into mush.

Make the dressing:

In a small bowl, whisk together the olive oil, lemon juice, Dijon mustard, minced garlic, oregano, salt, and pepper. Keep whisking until it thickens slightly and looks opaque instead of separated.

Dress the salad:

Pour the dressing over the salad and use a large spoon to fold everything together gently. You want every bite to have a little bit of that zesty dressing without drowning the fresh ingredients.

Add the finish:

Sprinkle crumbled feta on top if you're using it and serve right away or let it hang out in the fridge for 30 minutes. The flavors actually get better after a short chill but the herbs stay fresh.

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This has become my go-to when friends drop by unexpectedly because it looks impressive but takes zero effort. Last weekend my cousin asked if I'd cater her wedding shower and honestly this salad was the first thing that came to mind.

Make It Your Own

Sometimes I add diced avocado when I want something creamier or throw in chickpeas to make it more filling. My friend Maria puts diced apple in hers for sweetness which sounds weird but actually works beautifully.

What to Serve With It

Warm pita bread or crackers are perfect for scooping up every last bit of the dressing. I've also served it over mixed greens for a lighter version that stretches it to feed more people.

Storage and Prep Ahead

You can chop all the vegetables and whisk the dressing up to a day ahead just keep them separate until you're ready to eat. The tuna stays fresh in the fridge for two days once opened but the texture is best on day one.

• Making this for meal prep Keep the dressing on the side and add it right before eating
• Red onion can be strong so soak the slices in cold water for 10 minutes if you're sensitive
• Leftovers are actually great stuffed into a pita pocket for lunch the next day

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There's something about the bright colors and fresh flavors that just makes people happy whenever I serve this. Hope it becomes a staple in your kitchen like it has in mine.

Recipe Questions & Answers

→ How long does Mediterranean tuna salad keep in the refrigerator?

This salad keeps well for 2-3 days when stored in an airtight container in the refrigerator. The vegetables may release some moisture, so it's best to add fresh dressing before serving leftovers. For optimal texture, store the dressing separately and toss just before eating.

→ Can I make this tuna salad ahead of time?

Yes, this salad actually benefits from resting 30 minutes to 1 hour before serving, allowing the flavors to meld together. You can prepare it up to a day in advance, but add delicate herbs like fresh basil just before serving to maintain their vibrant color and flavor.

→ What can I substitute for the tuna in this Mediterranean salad?

Canned salmon works beautifully as a direct replacement for tuna. For a vegetarian option, use chickpeas or white beans for protein. Grilled chicken breast or cooked shrimp also pair wonderfully with these Mediterranean flavors while maintaining the salad's fresh character.

→ Is this Mediterranean tuna salad gluten-free?

Yes, all ingredients in this salad are naturally gluten-free. The tuna, vegetables, olives, and dressing contain no wheat or gluten-containing grains. Always verify that your canned tuna and other packaged ingredients are processed in a facility that follows gluten-free practices if you have severe sensitivities.

→ What should I serve with Mediterranean tuna salad?

Serve over a bed of mixed greens or arugula for added volume. Pair with crusty whole grain bread, pita, or crackers for scooping. A side of roasted vegetables or a simple soup complements the lightness of this dish. For a complete Mediterranean spread, add hummus and fresh fruit for dessert.

→ How can I add more protein to this tuna salad?

The base already provides 24g of protein per serving from the tuna. Add crumbled feta cheese for extra protein and creaminess, or serve with a side of quinoa, hard-boiled eggs, or additional white beans. Greek yogurt can also replace some of the olive oil in the dressing for a protein boost.