Keto Tuna Salad

in Recipes

Keto Tuna Salad

Make an amazing keto tuna salad in less than 10 minutes with 5 simple store bought ingredients. Works great as a weekend mini-meal or as high protein, low carb snack after a workout.

Serve your tuna salad inside a lettuce wrap or eat it plain with a fork. Either way, it’s delicious.

Makes 6 servings. Each serving has about 420 calories and less than 1 net carb.

Appreciate simple keto recipes like this one? Get all 25 of my minimalist low carb recipes for free so that you never get stuck without ideas of what to make for the week.


  • 3 large cans chunk tuna in water (12 ounce cans)
  • 1 cup of real mayo
  • 2 tablespoons of dill relish
  • 2 tablespoons of black pepper
  • Salt to taste
  • Optional add-ins: 2 tablespoons onion flakes and 2 teaspoons mustard
Keto Tuna Salad Ingredients

Ingredients for Keto Tuna Salad recipe


  • Large glass mixing bowl with lid (for prep and storage)
  • Pyrex measuring cup
  • Measuring spoons
  • Can opener
  • Strainer or colander (for draining the tuna and relish)
  • Spoon
  • Fork
Keto Tuna Salad Utensils

Utensils to make the best Keto Tuna Salad

Cooking Instructions

  1. Rinse and drain the tuna and dill relish in a colander then dump into mixing bowl.
  2. Add mayo, black pepper, salt, and optionally, the mustard and onion flakes.
  3. Furiously stir the ingredients together with a fork.
  4. Taste the tuna salad then add more mayo, pepper, etc as needed.

This keto tuna salad recipe tastes better when you wring as much water as possible from the tuna and dill relish (steps 1 & 2).

Shopping Notes

  1. Any brand of canned tuna in water is fine. I used store brand for this recipe.
  2. This recipe tastes better with regular mayo (any brand), but I used avocado oil mayo in this instance.
  3. Any brand of relish works as long as it’s dill relish and not sweet relish.
  4. Any salt, mustard, and black pepper are fine.
  5. Onion flakes can be hard to spot in the store. They are in the spice section and labeled “Minced Onions” or “Chopped Onions” or “Onion Flakes.”


You can serve this keto tuna salad inside a lettuce wrap or eat it plain with a fork. We serve this at the SkinnyPants household about once a month. It keeps well in the fridge for several days.

Keto Tuna Salad Plated

Special thanks to Mellissa from I Breathe I’m Hungry for her Easy Keto Tuna Salad recipe which gave me the idea to include onion flakes for added flavor and texture.

If you’d like something more indulgent, then consider this keto tuna salad recipe from Keto Size Me which adds sour cream, bacon, and hard boiled eggs to the mix.

I created this keto tuna salad recipe by comparing my usual recipe to the most popular keto tuna salad recipes online and then refined it to reduce the number of ingredients, the prep time, and complexity.

Hope you enjoy it!

Have any questions? Leave them in the comments and I’ll get back to you.

aka “Mr. SkinnyPants”

PS. If you want more of my minimalist keto recipes, you can get 1 new recipe per week via email here.

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  1. Love your guidance and advice. I am a 30 yr diabetic 2. I hav gained 60 lbs since starting meds. Raised on pinto beans and potatoes, Mac and cheese in WVA. All my family are diabetic and weigh over 200.