Summery Avocado Cucumber Tuna Salad

Summery Avocado Cucumber Tuna Salad

A bright, juicy, and refreshing no-cook salad bursting with crisp cucumbers, creamy avocado, and premium oil-packed tuna. Tossed with a zesty rice wine vinegar dressing and fresh herbs, it is the ultimate cooling meal for hot summer days.

15mEasy2 servings
Remix

Equipment

Cutting board
Chef's knife
Large mixing bowl
Small bowl
Whisk

Ingredients

2 servings

Salad Base

  • 250 g canned yellowfin tuna in olive oil, drained, leaving a small amount of residual oil for flavor
  • 150 g english cucumber, diced into 1cm cubes
  • 1 avocado, pitted and diced into 1.5cm cubes
  • 40 g pickled red onions, roughly chopped
  • 10 g fresh dill, finely chopped
  • 10 g fresh parsley, finely chopped

Dressing

  • 30 ml rice wine vinegar, unseasoned
  • 15 ml extra virgin olive oil
  • 5 g dijon mustard
  • 2 g kosher salt
  • 1 g black pepper, freshly cracked

Nutrition (per serving)

Nutrition is estimated per serving. Nutrients without complete source data are omitted.

442
Calories
39g
Protein
13g
Carbohydrates
28g
Fat
6g
Fiber
5g
Sugar
1113mg
Sodium
Full nutrition
Calories
442 kcal
Protein
39 g
Carbohydrates
13 g
Fat
28 g
Fiber
6 g
Sugar
5 g
Sodium
1113 mg
Saturated Fat
4 g
Monounsaturated Fat
16 g
Polyunsaturated Fat
6 g
Cholesterol
23 mg
Potassium
779 mg
Calcium
62 mg
Iron
3.2 mg
Magnesium
75 mg
Phosphorus
450 mg
Zinc
1.8 mg
Vitamin A
78 mcg
Vitamin C
20 mg
Vitamin D
8.4 mcg
Vitamin E
3.6 mg
Vitamin K
168 mcg
Vitamin B6
0.4 mg
Vitamin B12
2.8 mcg
Thiamin
0.14 mg
Riboflavin
0.28 mg
Niacin
16.9 mg
Folate
80 mcg
Water
205 g

Sources: Aggregated Public Data, USDA FoodData Central

Method

01

Drain the tuna, reserving a small amount of the oil if desired for the dressing, and place the drained tuna into a large mixing bowl. Flake gently with a fork into bite-sized chunks.

2m
02

In a small bowl, combine the rice wine vinegar, extra virgin olive oil, Dijon mustard, kosher salt, and black pepper. Whisk vigorously until the mixture is fully emulsified and slightly opaque.

3m
03

Add the diced English cucumber, pickled red onions, chopped fresh dill, and chopped fresh parsley to the large bowl containing the flaked tuna. Pour the emulsified dressing over the top and mix gently until all ingredients are evenly coated.

2m
04

Add the diced avocado to the salad mixture. Using a flexible spatula, fold the avocado in very gently to prevent it from turning to mush and clouding the dressing.

1m
05

Taste the salad and adjust seasoning with additional salt, pepper, or a splash more rice wine vinegar if needed. Serve immediately on its own, over a bed of leafy greens, or with crackers.

Chef's Notes

  • Utilizing the oil from a high-quality canned tuna for the dressing instead of fresh olive oil boosts the savory umami profile of the entire dish while reducing waste.
  • If you do not have pre-made pickled red onions, you can quick-pickle sliced raw onions by submerging them in the rice wine vinegar called for in the recipe for 10 minutes before whisking the dressing.
  • English and Persian cucumbers are preferred here because their thin skins do not require peeling and they have fewer watery seeds than standard slicing cucumbers.
  • Rice wine vinegar is naturally sweeter and less acidic than white or cider vinegars. If substituting with white wine vinegar or apple cider vinegar, add a pinch of sugar to balance the harshness.

Storage

Refrigerator: 24 hoursStore in an airtight container with plastic wrap pressed directly against the surface to minimize avocado oxidation. Best eaten fresh.

Troubleshooting

Salad becomes mushy and cloudy

Cause: Over-mixing after adding the avocado

Fix: Cannot be fixed structurally, but the flavor will remain excellent

Prevention: Always add avocado as the absolute last step and fold delicately rather than stirring vigorously

Salad is too watery at the bottom of the bowl

Cause: Cucumbers released their water content into the salad

Fix: Use a slotted spoon when serving to leave excess liquid behind

Prevention: If not serving immediately, scoop the seeds out of the cucumbers before dicing

Cultural Context

Tuna salad in America has historically been heavily reliant on mayonnaise to provide moisture and cohesion. This recipe leans into Mediterranean and contemporary health-conscious traditions, utilizing high-quality olive oil and bright vinegar to create a lighter, more refreshing profile that allows the actual flavor of the fish and fresh produce to shine.

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