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white bowl filled with healthy tuna salad, with flecks of radish, capers and red onion.

Healthy Tuna Salad (No Mayo)

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5 from 2 reviews

  • Author: Lisa
  • Total Time: 15 minutes
  • Yield: 2 servings 1x


A full-of-flavor, low-calorie, lower-fat version of classic tuna salad, made with yogurt instead of mayo. Perfect for lunch. Also makes a healthy satisfying afternoon snack.


  • 1 5-ounce can of water-packed tuna, drained
  • 1/2 cup plain low-fat yogurt, not Greek (I recommend Stonyfield Farm Organic)
  • 3 tablespoons finely chopped radishes (or celery)
  • 3 tablespoons finely chopped red onion (1/2 a small red onion)
  • 2 tablespoons non-pareil (small) capers divided: 1 tablespoon chopped, one tablespoon left whole
  • 2 teaspoons prepared dijon mustard such as Grey Poupon
  • 1 lemon, halved. Once half juiced. The other half sliced into wedges.
  • Sea salt or kosher salt, to taste

Optional Accompaniments:

  • 1 head of endive or chicory, separated into individual leaves


  1. Mash the tuna in a bowl. Add yogurt, radishes, onion, chopped and whole capers, mustard, 1 teaspoon of lemon juice, and salt, to taste. Mix thoroughly. Adjust flavor with more lemon juice and salt, if needed. Add additional yogurt for a creamier texture.
  2. For a healthy snack, scoop a heaping tablespoon of tuna salad onto each endive leaf. Serve with lemon wedges.


MAKE IT EXTRA CREAMY: Feel free to add as much yogurt as you need to achieve your desired level of creaminess. Plain low fat yogurt is so delicious when mixed with tuna!

ADD-INS AND SUBSTITUTIONS: I've chosen radishes, red onions and capers for flavor and crunch but this tuna salad lends itself to many variations. Here are some of my other favorite mix-ins: chopped scallions, chopped chives, slivered basil, celery, pickles and olives.

SWAP LEMON JUICE FOR VINEGAR: The lemon juice adds acid to the mix which balances out the flavors in this salad but vinegar will do the same so feel free to give it a try. I like red wine vinegar best for tuna salad.

  • Prep Time: 15
  • Category: salad, snack, lunch
  • Method: no cook
  • Cuisine: Mediterranean diet