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Gluten-Free Tuna Salad Stuffed Avocado

By the Gluten Free Recipes team ·

Creamy, zesty tuna salad nestled inside ripe avocado halves creates a satisfying and flavorful light meal. This recipe offers a delightful contrast of textures, from the tender tuna to the yielding avocado, all brought together with bright, fresh flavors.

Easy Gluten-Free Verified gluten free
Prep: 15 min Cook: 20 min Total: 35 min Serves: 4

At a glance: This easy lunch recipe yields 4 servings in about 35 minutes (15 min prep, 20 min cook). It uses 9 ingredients — including chunk light tuna in water, celery, red onion — and walks through 5 steps. Updated . Browse more lunch recipes or return to all gluten-free recipes.

Gluten-Free Tuna Salad Stuffed Avocado — lunch recipe, serves 4

Cross-Contamination Warning for Gluten-Free Tuna Salad Stuffed Avocado: When preparing this lunch recipe, in a shared kitchen, avoid porous materials — wooden spoons, wooden cutting boards, and scratched non-stick pans can harbor gluten proteins even after washing. Prefer glass, metal, or silicone tools.

Gluten-Free Notes for Gluten-Free Tuna Salad Stuffed Avocado: This recipe is naturally gluten-free, relying on whole foods and certified gluten-free condiments. It avoids all gluten-containing grains.

Scale Recipe:
4 servings
Ingredient amounts update automatically

Ingredients

  • 1 can (5 oz) chunk light tuna in water, drained
  • 1/4 cup celery, finely diced
  • 2 tbsp red onion, finely diced
  • 2 tbsp gluten-free mayonnaise
  • 1 tsp fresh lemon juice
  • 1/4 tsp dijon mustard (certified GF)
  • Salt and freshly ground black pepper to taste
  • 2 medium ripe avocados
  • 1 tbsp fresh parsley, chopped (for garnish)

Instructions

  1. 1

    In a medium bowl, combine the drained chunk light tuna, finely diced celery, and finely diced red onion. Gently flake the tuna with a fork, ensuring it's well combined with the vegetables.

  2. 2

    Add the gluten-free mayonnaise, fresh lemon juice, and certified gluten-free dijon mustard to the tuna mixture. Stir everything together until the ingredients are thoroughly incorporated and the mixture is creamy, about 1-2 minutes.

  3. 3

    Season the tuna salad generously with salt and freshly ground black pepper to your preference. Taste and adjust seasonings as needed, ensuring a balanced flavor profile.

  4. 4

    Cut each ripe avocado in half lengthwise and carefully remove the pit. Using a spoon, gently scoop out a small portion of the avocado flesh from the center of each half to create a larger cavity for the tuna salad, being careful not to pierce the skin.

  5. 5

    Generously spoon the prepared tuna salad into the cavities of the avocado halves, mounding it slightly. Garnish with fresh chopped parsley for a pop of color and freshness. Serve immediately, enjoying the vibrant flavors and creamy textures.

Nutrition (per serving)

295
Calories
13g
Protein
31g
Carbs
11g
Fat
5g
Fiber
353mg
Sodium

Tips & Notes

  • Zest the lemon before juicing — it's nearly impossible to zest after the lemon is squeezed.
  • Caramelize onions over medium-low heat for 30–45 minutes for a sweet depth; rush at high heat and they'll be bitter.
  • Mash avocado immediately after cutting to slow browning; a squeeze of lemon or lime juice helps further.

Learn More

Gluten Free Recipes Team

Celiac-safe recipe development and testing since 2026

Our team develops and tests every recipe to be 100% gluten-free, verifying ingredients, techniques, and cross-contamination risks. We focus on making gluten-free cooking as delicious and accessible as possible. Learn more about us.

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