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side view shot of a bowl full of avocado tuna salad with a tuna salad sandwich in the background
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4.78 from 9 votes

Avocado Tuna Salad

This Avocado Tuna Salad is so delicious and loaded with good stuff such as chunks of tuna, avocados, cucumbers and my secret ingredient, sun-dried tomatoes! This avocado tuna salad is creamy, full of nutrients and perfect for lunch.
Prep Time15 mins
Total Time15 mins
Course: Lunch
Cuisine: American
Keyword: avocado salads, avocado tuna salad, tuna salads
Servings: 6
Calories: 322kcal



  • 2 tbsp Dijon mustard I used Tarragon Dijon mustard
  • 2 tbsp olive oil
  • 2 tbsp lemon juice freshly squeezed
  • 1 tbsp Italian seasoning
  • 1 tsp sugar granulated
  • ½ tsp salt or to taste
  • ½ tsp pepper or to taste
  • ¼ cup mayonnaise


  • 15 oz canned tuna in water, drained and flaked (3 cans)
  • 1 English cucumber chopped
  • 1 small red onion chopped
  • 1 stalk celery chopped
  • ½ cup sun-dried tomatoes drained and chopped
  • 2 large avocados peeled, pitted and chopped


  • In a small bowl whisk all the dressing ingredients together. If you find it's a little to thick add a tbsp or so of water to thin it out. 
  • In another large bowl add all the salad ingredients and drizzle the dressing over. Toss well. 
  • Serve as sandwiches or as salad.



  1. Store leftovers in an airtight container for up to 2 days. Mine hasn't turned brown because of the avocados, however save the avocado pit and stick it in the container. It helps to make sure it stays green.


Calories: 322kcal | Carbohydrates: 16g | Protein: 17g | Fat: 22g | Saturated Fat: 3g | Cholesterol: 29mg | Sodium: 524mg | Potassium: 918mg | Fiber: 6g | Sugar: 6g | Vitamin A: 345IU | Vitamin C: 14.4mg | Calcium: 64mg | Iron: 2.9mg