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Mediterranean Tuna Salad – Low Carb Keto Recipe

I don't usually make tuna salad, but I was inspired by two things. First, we were back in Greece in April after five years away. I was reminded of this absolutely delicious keto tuna salad I had there. In my mind, two things made it perfect, the fact that it was a tuna salad without mayo and the use of lemon and lemon zest. Just being in that beautiful place again made me want to create this Mediterranean Tuna Salad recipe.

Tuna Salad in Greece

Making Mediterranean tuna salad low carb is easy. The only carbs in this dish come from vegetables. I've said this before, but carbs from vegetables don't seem to affect me at all. Your mileage may vary but with only 7 total carbs and 5 net, it should fit into your keto macros nicely.

It's usually when people make a tuna salad recipe into a sandwich or serve it with chips that it becomes higher carb. Most tuna salad recipes are naturally low-carb.

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Keto Tuna Salad Recipe Serving Ideas

If you're missing a sandwich, feel free to wrap up this delightful Mediterranean tuna salad in a low-carb wrap if you're not bothered by gluten. Or use our Keto Carnivore Wrap recipe to keep it super clean. Another great serving idea is to place some beautiful butter lettuce leaves on a plate, then the tuna on top. You can also use a large lettuce leaf as a wrap. I prefer to eat it straight out of the bowl!

Mediterranean Tuna Salad Keto

As for other ingredients you can serve this with, I love it topped with some perfect boiled eggs. Avocado is also amazing as are capers and toasted pinenuts. I have to be careful about how many (or any) olives I put in dishes because my husband doesn't like them. I know, weirdo, lol. However, a few extra olives here as a garnish or mixed in the tuna salad would be delicious.

What Makes a Mediterranean Tuna Salad?

If you're wondering what elevates the humble tuna salad into a Mediterranean tuna salad, it's all in the ingredients. No mayo here which means no crappy oils, although you can certainly make your own to keep it super healthy. Lemon, feta and extra virgin olive oil are quintessentially Greek ingredients.

Mediterranean Tuna Salad Low Carb Keto Recipe

Prep Time: 12 minutes
Total Time: 12 minutes
Servings: 6

Ingredients  

Tuna Salad

  • 15 ounces tuna
  • 1 large english cucumber, diced
  • 6 ounces feta cheese
  • 1 medium red bell pepper
  • ¼ cup red onion, diced
  • 1 tablespoon fresh mint, minced
  • 1 tablespooon fresh parsley, minced
  • ¼ cup kalamata olives, halved
  • 5 large radish, julianne
  • 1 medium lemon, zested and juiced

Dressing

  • ¼ cup extra virgin olive oil
  • 1 teaspoon dijon mustard
  • 1 medium lemon, juiced
  • 2 cloves garlic, minced
  • salt and pepper, to taste
  • red pepper flakes, optional, to taste

Instructions

  • Place tuna, cucumber, feta, red bell pepper, red onion, mint, parsley, olives radish and the lemon zest (not the juice) in a large mixing bowl and mix to combine.
  • In a smaller mixing bowl, pour in the olive oil, Dijon mustard, juice from the two lemons, garlic, salt, pepper and red pepper, if using.
  • Use a stick blender or whisk to combine thoroughly.
  • Pour the dressing into the tuna mixture and stir to combine.
  • Serve in a bowl, over lettuce or in a wrap.

Video

Nutrition

Serving: 1peopleCalories: 256kcalCarbohydrates: 7gProtein: 19gFat: 17gSaturated Fat: 5gPolyunsaturated Fat: 1gMonounsaturated Fat: 9gTrans Fat: 0.002gCholesterol: 51mgSodium: 582mgPotassium: 348mgFiber: 2gSugar: 3gCalcium: 182mgIron: 2mgNet Carbohydrates: 5g

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Author

  • Cheryl McColgan

    Cheryl McColgan is the Founder and Editor in Chief of Heal Nourish Grow, where she has published evidence-based health and nutrition content since 2018.

    With over 30 years of experience in fitness, nutrition, and healthy living, and nearly 20 years of professional editorial and journalism experience, she brings both subject-matter depth and trained editorial judgment to everything on the site.

    Cheryl holds a degree in Psychology with a minor in Addictions Studies, completed graduate training in Clinical Psychology, and is a NASM Certified Personal Trainer and E-RYT Certified Yoga Instructor.
    She is the author of 21 Day Fat Loss Kickstart, Make Keto Easy, Take Diet Breaks and Still Lose Weight, The Grain Free Cookbook for Beginners, and Easy Weeknight Keto.

    Read more about Cheryl and the journey that created Heal Nourish Grow on the about page.
    Cheryl McColgan is the founder of Heal Nourish Grow, where she writes about protein, body composition, healthy aging, and evidence-based nutrition, along with the everyday habits that actually make those things work in real life.

    With a background in psychology and graduate training in clinical psychology, plus nearly 20 years of experience in editorial and publishing, Cheryl approaches health from both a research and real-world perspective. She’s also been immersed in fitness and nutrition for more than 25 years, which gives her a practical lens most purely academic content tends to miss.

    Her work today focuses heavily on protein intake (especially for women), muscle retention, metabolic health, and sustainable fat loss, along with topics like sleep, recovery, and wearable health tech. You’ll also find a mix of high-protein, low-carb recipes designed to make hitting those goals easier without overcomplicating things.

    Cheryl’s interest in health and nutrition became more personal after navigating her own autoimmune challenges, which pushed her to dig deeper into how lifestyle, diet, and daily habits impact long-term health. That experience continues to shape how she approaches everything on this site: practical, realistic, and focused on what actually works over time.

    What Cheryl Covers

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