Tuna Salad Sandwich

You are going to love this easy classic tuna salad recipe with 6 simple ingredients. Perfect on a gluten free everything bagel!

Super Simple Tuna Salad Recipe with only 6 ingredients.

About Tuna Salad

There are so many, many variations of tuna salad. And we’ve tried quite a few. We also like this protein-packed tuna salad recipe version with boiled eggs.

The great thing about this recipe is that it’s budget-friendly. And we pretty much always have everything on hand.

But most of the time we go back to this version I created a few years ago.

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How To Make A Sweet And Savory Tuna Salad Sandwich

  1. Peel and dice the red onion and the apple.
  2. Use a mixing bowl to combine the red onion, apple, tuna, sweet corn, and relish.
  3. Add mayonnaise and combine well. Season with salt and pepper.
  4. Toast a (gluten free) bagel or sandwich bread. Put a generous layer of the tuna salad on the sandwich. Serve and enjoy.

Bonus Tip: If you want to cut down on calories, you can substitute Greek yogurt for the mayonnaise and it’ll still be yummy. And I’ve also made this recipe with 50/50 ratio of mayo and Greek yogurt. It works really well, too.

Tuna Salad Recipe that's only got 6 ingredients. Canned Tuna, sweet corn, s pickle relish, onion, apple, and mayo

Tuna Salad Sandwich
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Super Simple Tuna Salad Sandwich recipe on served on a gluten free bagel.

Tuna Salad Prep Tip:

Making the tuna salad right in the storage container saves on dirty dishes.

Just a quick prep tip. Instead of making the tuna salad in classic mixing bowl and then putting it into a food storage container like this one, try making it directly in this Pyrex storage container with a lid.

This way you’ll simply pop a lid on and the leftovers directly into your fridge.

More Easy Lunch Recipes

If you’re new to a gluten free life, check out these easy and delicious recipes:

Super Simple Tuna Salad Sandwich recipe on served on a gluten free bagel.

Tuna Salad on a Gluten Free Bagel

With only six ingredients (you probably have on hand), this tuna salad recipe is perfect option for a quick lunch.
Prep Time: 15 minutes
Total Time: 15 minutes
COURSE: Lunch, Salad
CUISINE: American, Pescatarian
KEYWORD: gluten free recipes, gluten free salad recipes
Author: Maike


Tuna Salad

  • 4 oz tuna (packed in water)
  • 1 medium apple (Gala is yummy)
  • 1/2 cup red onion
  • 1/2 cup sweet corn
  • 1/2 cup sweet pickle relish
  • 3 tbsp mayonnaise


  • 1 gluten free bagel


  • Open canned tuna and drain excess water. Open sweet corn and drain liquid. Core and dice the apple. Next chop the red onion. 
  • In a large mixing bowl (or this Pyrex Storage Container) combine tuna, red onion, apple, sweet corn, apple, sweet pickle relish. Add mayonnaise. (you can add salt, but I find it unnecessary). Mix well.
  • Toast your gluten free bagel (or gluten free sandwich bread). Add tuna salad mixture. Serve with a slice of tomato or cucumber. 
  • Enjoy!


Calories: 270kcal | Carbohydrates: 34g | Protein: 10g | Fat: 11g | Saturated Fat: 1g | Cholesterol: 9mg | Sodium: 589mg | Potassium: 178mg | Fiber: 3g | Sugar: 17g | Vitamin A: 470IU | Vitamin C: 5mg | Calcium: 61mg | Iron: 1.5mg
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