Classic Mayo-Dressed Tuna Salad Sandwiches Recipe

Photograph: Vicky Wasik

Why It Works

  • Briefly soaking the diced red onion in red wine vinegar tames its pungency and gives it a pop of tartness.
  • Shredding the tuna finely prevents the salad from ending up with any dry bits.
  • A splash of fish sauce or minced anchovy adds a subtle savory hit.

Classic in every way, but with a couple of subtle twists to amp up its flavor and texture, the tuna salad on these sandwiches is packed with bits of celery, rapid-pickled red onion, parsley, and a small dose of fish sauce (or anchovy) for a deeper, more savory flavor.

Recipe Facts

Active: 25 mins
Total: 25 mins
Serves: 4 servings

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  • 1 medium red onion (about 8 ounces; 225g), cut into 1/4-inch dice

  • 1/2 cup (120mlred wine vinegar

  • 4 (5-ounce; 140g) cans oil-packed tuna, drained

  • 2 stalks celery (about 6 ounces; 170g total), cut into 1/4-inch dice

  • 1 cup (240ml) mayonnaise, plus more as needed

  • 1 ounce (about 10 stalks) flat-leaf parsley leaves and tender stems, minced (about 1/4 packed cup)

  • 1/2 teaspoon (3g) Asian fish sauce or very finely minced oil-packed anchovy fillets (about 2 small fillets)

  • Kosher salt and freshly ground black pepper

  • 8 slices sandwich bread, very lightly toasted

  • Romaine lettuce leaves, torn, for garnish


  1. In a small bowl, combine onion and vinegar (vinegar should just cover onion; add more if it does not) and let stand 15 minutes.

  2. Meanwhile, in a medium bowl, combine tuna and mayonnaise and mix very well with a spoon until tuna is reduced to very small shreds.

  3. Drain onion well, then add to tuna along with celery, parsley, and fish sauce or anchovy. Mix until well incorporated, then season with salt and pepper. Add more mayo, 1 tablespoon at a time, if desired.

  4. Spoon tuna salad onto 4 bread slices, top with lettuce leaves, then close sandwiches. Serve right away.

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Nutrition Facts (per serving)
636 Calories
48g Fat
39g Carbs
12g Protein
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Nutrition Facts
Servings: 4
Amount per serving
Calories 636
% Daily Value*
Total Fat 48g 61%
Saturated Fat 7g 37%
Cholesterol 30mg 10%
Sodium 925mg 40%
Total Carbohydrate 39g 14%
Dietary Fiber 4g 13%
Total Sugars 7g
Protein 12g
Vitamin C 10mg 50%
Calcium 137mg 11%
Iron 3mg 18%
Potassium 445mg 9%
*The % Daily Value (DV) tells you how much a nutrient in a food serving contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.
(Nutrition information is calculated using an ingredient database and should be considered an estimate.)