This Tuna Avocado Cucumber Salad is everything you want in a quick and healthy meal—protein-packed tuna, creamy avocado, crunchy cucumber, and a zesty lemon-olive oil dressing.
It’s a refreshing salad that’s ready in just 10 minutes, making it perfect for lunch, dinner, or meal prep.
Whether you’re following a low-carb, paleo, or Mediterranean-style diet, this salad fits the bill with clean ingredients, healthy fats, and tons of flavor.
Why You’ll Love This Recipe
No cooking required – Just chop, mix, and serve
High in protein and healthy fats – Keeps you full and energized
Naturally gluten-free and dairy-free – Great for all diets
Incredibly fresh and flavorful – Every bite is crisp, creamy, and zesty
Fast and easy – Perfect for busy weekdays
What You’ll Need (Ingredient Highlights)
Tuna in oil – Rich, flaky protein that adds depth
English cucumber – Thin-skinned and crisp, perfect for raw salads
Avocados – Creamy texture and heart-healthy fats
Red onion – Adds bite and crunch
Fresh cilantro – Herbaceous and bright
Lemon juice – Brightens and balances the richness
Extra virgin olive oil – Adds flavor and healthy fat
Sea salt and black pepper – Simple seasonings that elevate everything
Pro Tips Before You Start
Use tuna in oil – It adds richness and moisture to the salad
Slice ingredients evenly – Helps every bite feel balanced
Add avocado last – To prevent it from browning too soon
Taste and adjust seasoning – You may want more salt or lemon depending on your palate
Chill ingredients ahead – For an extra refreshing salad
How to Make Tuna Avocado Cucumber Salad
Step 1: Prep the Tuna
Open and drain three 5-ounce cans of tuna in oil.
Use a fork to flake the tuna into bite-sized pieces.
Step 2: Slice the Veggies
Slice 1 English cucumber into thin rounds or half-moons
Slice 2 large or 3 medium avocados – peel, pit, and slice
Thinly slice 1 red onion
Roughly chop ¼ cup fresh cilantro
Step 3: Assemble the Salad
In a large salad bowl, combine: Flaked tuna, Cucumber slices, Avocado slices, Red onion, Chopped cilantro
Step 4: Make the Dressing
In a small bowl, whisk together:
2 tablespoons fresh lemon juice
2 tablespoons extra virgin olive oil
1 teaspoon sea salt (or to taste)
⅛ teaspoon black pepper
Step 5: Toss and Serve
Pour the dressing over the salad.
Toss gently to coat all ingredients evenly without mashing the avocado.
Serve immediately, or chill for 10–15 minutes before serving.
What to Serve With Tuna Avocado Cucumber Salad
Crusty bread or pita chips – For scooping
Steamed rice or quinoa – For a heartier meal
Hard-boiled eggs – Adds extra protein
Roasted sweet potatoes – A warm and sweet contrast
Soup or broth – Light chicken or vegetable soup pairs well
Variations and Substitutions
Swap tuna for salmon – Use canned or grilled for a twist
Add cherry tomatoes – For a juicy pop of color
Use parsley instead of cilantro – For a more neutral herb flavor
Add feta or goat cheese – If not avoiding dairy
Include leafy greens – Like arugula or baby spinach
Make it spicy – Add sliced jalapeños or crushed red pepper flakes
Storage Tips
Refrigerator – Store leftovers in an airtight container for up to 1 day
Best fresh – Avocados will brown quickly, so it’s best eaten right away
Prep ahead tip – Slice everything except the avocado, then add fresh before serving
FAQs
Can I use tuna in water instead of oil?
Yes, but tuna in oil adds more richness and flavor.
If using tuna in water, consider adding a bit more olive oil.
Is this salad keto-friendly?
Absolutely. It’s low in carbs and high in healthy fats and protein.
Can I add eggs to this salad?
Yes! Chopped hard-boiled eggs go great with the other ingredients.
Is it okay to use lime instead of lemon?
Yes, lime juice works well and gives a slightly different citrus note.
How can I make this salad spicy?
Add chopped jalapeño, red pepper flakes, or a drizzle of hot sauce.
Can I turn this into a sandwich or wrap?
Definitely—serve it in pita, lettuce cups, or on toasted bread for a quick lunch.
Final Thoughts
This Tuna Avocado Cucumber Salad is the kind of recipe that checks all the boxes: easy, fresh, healthy, and incredibly satisfying.
Whether you’re looking for a clean lunch, a light dinner, or a dish to bring to a gathering, this salad delivers every time.
It’s versatile, customizable, and full of bold flavors and nourishing ingredients.
Once you try it, it might just become a regular in your weekly meal rotation.
