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Classic Tuna Salad
AmericanHigh-ProteinGluten-FreeDairy-Free

Classic Tuna Salad

A american lunch built for repeat cooking, with a clear ingredient list, tested timings, and practical variations.

10 min total
4 servings
No-Cook
Calories
213 kcal
Protein
17g
Carbs
5g
Fat
14g

Ingredients checklist

Numbered instructions

1Drain tuna thoroughly and place in a medium bowl, breaking it apart gently with a fork.
2Soak diced red onion in cold water for 5 minutes to mellow its sharpness, then drain well.
3Add mayonnaise, Dijon mustard, lemon juice, and sweet relish to the tuna.
4Add diced celery, soaked onion, and garlic powder; stir until evenly combined.
5Season generously with salt and black pepper. Cover and refrigerate for at least 15 minutes.
6Serve on toasted bread, crackers, lettuce wraps, or stuffed into a halved tomato.

Chef's Tips

Soaking red onion in cold water removes harsh sulfur compounds so it doesn't overpower the salad.
Press the can lid firmly against the tuna to squeeze out all liquid — watery tuna ruins the texture.
Chill for at least 15–30 minutes before serving; the flavors deepen significantly as it rests.
Substitute half or all of the mayo with full-fat Greek yogurt for a lighter, higher-protein version.

Recipe Variations

Mediterranean Style: Swap mayo for Greek yogurt, add Kalamata olives, capers, and diced cucumber.
Avocado Tuna Salad: Replace mayonnaise with mashed ripe avocado and add diced jalapeño for a creamy dairy-free version.
Tuna Nicoise: Add hard-boiled eggs, green beans, cherry tomatoes, and a Dijon vinaigrette for a French-inspired salad.