Tuna Cucumber Salad (No Mayo, Lemon & Herb Dressing)
Make a crisp, protein-packed Tuna Cucumber Salad without mayonnaise in 10 minutes. Flaked canned tuna tossed with diced cucumber, red onion, fresh dill, lemon juice, and extra virgin olive oil.
Introduction
Tuna cucumber salad without mayo is a crisp, vibrant, and clean lunch recipe designed for anyone craving the protein density of canned tuna without heavy mayonnaise dressings. By pairing solid white or chunk light tuna packed in water with cool diced English cucumber, pungent red onion, and peppery celery, this salad delivers satisfying crunch in every bite.
Rather than masking the tuna in thick binders, the dressing uses cold-pressed extra virgin olive oil, freshly squeezed lemon juice, a hint of Dijon mustard for gentle emulsification, and a shower of chopped fresh dill and flat-leaf parsley. It comes together in just ten minutes with zero cooking required—making it an ideal light meal, meal-prep side, or refreshing grain-free lunch bowl.
Why this is a Great Meal
Why You'll Love This Recipe: Ready in 10 minutes with zero cooking or stove time, delivers 29g of clean protein per serving without mayonnaise, stays crisp and fresh with diced English cucumbers, and uses cold-pressed extra virgin olive oil and fresh lemon juice for a bright vinaigrette.
Instructions
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Step 1: Press & Drain the Tuna Thoroughly — Open both cans of tuna and press the lid firmly against the meat over the sink (or press in a fine mesh sieve) to expel all residual liquid. Transfer the drained tuna to a medium mixing bowl and flake gently with a fork into chunky bite-sized flakes. Keeping chunks intact prevents a mushy texture.
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Step 2: Dice the Vegetables — Slice the English cucumber lengthwise, scoop out the watery seed center with a small spoon if desired, and dice into crisp 1/2-inch cubes. Finely mince the red onion and celery, and chop the fresh dill and parsley.
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Step 3: Whisk the Lemon Herb Dressing — In a small bowl or measuring cup, whisk together the extra virgin olive oil, fresh lemon juice, lemon zest, Dijon mustard, grated garlic, sea salt, and black pepper until smoothly emulsified.
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Step 4: Toss Gently & Combine — Add the diced cucumber, minced red onion, celery, and chopped fresh herbs to the bowl with the flaked tuna. Pour the vinaigrette over top and gently fold with a spoon until evenly coated.
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Step 5: Garnish & Serve — Divide into chilled serving bowls, garnish with an extra sprig of fresh dill, a twist of cracked black pepper, and fresh lemon wedges on the side. Serve immediately or chill for 15 minutes.
- ✦Moisture Control Secret: Cucumbers contain 95% water. If preparing more than 30 minutes in advance, remove cucumber seeds and toss the diced cucumber with a pinch of salt on paper towels for 5 minutes before mixing.
- ✦Flake Tuna Gently: Avoid mashing the tuna into a paste; large, flaky chunks absorb the vinaigrette much better while preserving clean separation.
- ✦Herb Flexibility: Fresh dill gives a classic Scandinavian deli flair, while flat-leaf parsley and fresh mint provide a bright Mediterranean twist.
- ✦Storage: Best eaten fresh. Leftovers can be stored in an airtight glass container in the refrigerator for up to 2 days (drain any accumulated cucumber juices before eating).
Need Metric or Gram Weights?
Convert cup measurements to grams using ingredient-specific density factors.
Easy Variations
Mediterranean Chickpea & Olive Addition
Fold in 1/2 cup of rinsed chickpeas and 2 tablespoons of chopped Kalamata olives for extra fiber and savory depth.
Creamy Avocado Tuna Salad
Fold in 1 diced ripe avocado with 1 tablespoon of capers right before serving for rich, velvety plant fats.
Frequently Asked Questions
Q: How do you make tuna salad without mayonnaise?
A: By emulsifying extra virgin olive oil with fresh lemon juice and Dijon mustard. This creates a zesty vinaigrette that lightly coats the flaked tuna without heavy saturated fats.
Q: How do you keep cucumber tuna salad from getting watery?
A: Thoroughly squeeze all liquid out of the canned tuna, remove the wet inner seeds from the cucumber before dicing, and assemble the salad close to serving time.
Q: What kind of canned tuna is best for this salad?
A: Solid white albacore tuna packed in water provides firm, chunky flakes with mild taste. Chunk light skipjack tuna in water also works excellently for a lighter bite and lower mercury content.
Q: Can I meal prep tuna cucumber salad?
A: Yes. For optimal crispness, prep the drained tuna and diced vegetables in one container and keep the lemon vinaigrette in a small separate dressing cup. Toss them together right before lunch.
Nutrition
Approximate values — meant as a guide, not a verdict.
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