
This avocado tuna salad recipe transforms ordinary canned tuna into a creamy, protein-packed meal that's perfect for quick lunches or light dinners. The combination of chunky tuna with buttery avocado creates a delightful texture while fresh herbs and lemon brighten the entire dish.
I started making this recipe during summer when turning on the oven seemed unbearable. The first time I served it, my husband immediately asked for it to be added to our regular meal rotation, especially for picnics and beach days.
Ingredients
- Canned tuna: Provides the protein base and works equally well with water or oil packed varieties depending on your preference for richness
- Red onion: Adds a sharp bite and beautiful color contrast that makes the salad visually appealing
- Celery: Contributes essential crunch and a fresh element that balances the creaminess
- Fresh parsley: Brightens the entire dish with its clean, herbaceous flavor
- Lemon: Offers both zest and juice that cuts through the richness of the avocado and tuna
- Avocado: Serves double duty as both chunky texture elements and the creamy dressing base
- Garlic: Provides a subtle aromatic foundation that enhances the other flavors without overpowering
- Fresh chives: Add a mild onion flavor and pretty green specks throughout the salad
- Olive oil: Creates silkiness in the dressing while adding heart-healthy fats
- Kosher salt: Enhances all the flavors and brings everything together
Step-by-Step Instructions
- Prepare the tuna base:
- Drain the canned tuna thoroughly and place in a large bowl. Use a fork to break up any larger chunks into flaky pieces. This creates the perfect texture foundation for the salad.
- Prepare the fresh ingredients:
- Finely chop the red onion, celery, and parsley, adding each to the bowl as you complete them. Grate the lemon zest and add it to the mixture. These ingredients provide essential texture contrast and bright flavors that complement the tuna.
- Add the chunky avocado:
- Cut half of the avocado into small pieces and gently fold into the tuna mixture. Be careful not to overmix as you want to maintain the distinct avocado chunks that provide bursts of creamy texture throughout the salad.
- Create the avocado dressing:
- Scoop out the remaining avocado half into a separate bowl. Add the grated garlic and lemon juice, then whisk until smooth and creamy. This becomes the foundation of your dressing and replaces traditional mayonnaise with a healthier alternative.
- Finish and season the salad:
- Add the chopped chives, olive oil, and salt to the smooth avocado mixture and whisk until well combined. Pour this dressing over the tuna mixture and gently fold everything together until evenly coated. Taste and adjust seasonings with additional lemon juice or salt as needed.

The avocado is truly the secret weapon in this recipe. I discovered its potential as a mayo replacement years ago when trying to create healthier versions of classic salads. The first time I served this to my children, they had no idea they were eating something so nutritious they just kept asking for more.
Storage Tips
This salad is best enjoyed within 24 hours of making it, as the avocado will begin to oxidize even with the lemon juice protection. Store in an airtight container in the refrigerator with plastic wrap pressed directly onto the surface to minimize air exposure. If making ahead for lunch, consider keeping the dressing separate and combining just before eating for optimal freshness.
Delicious Variations
This recipe welcomes creative adaptations based on what you have available. Try adding diced apple for sweetness and additional crunch, or mix in chopped hard-boiled eggs for extra protein. For a Mediterranean twist, incorporate olives, capers, and a sprinkle of dried oregano. You can also add a kick with a dash of hot sauce or diced jalapeño if you enjoy spicier flavors.

Serving Suggestions
While delicious on toast or sandwich bread, this versatile salad shines in multiple presentations. Serve it over a bed of mixed greens for a complete meal, stuff it into hollowed tomatoes for an impressive appetizer, or scoop it with cucumber slices or crackers for a lighter option. For a carb-conscious meal, serve in lettuce cups or alongside sliced vegetables for dipping.
Commonly Asked Questions
- → Can I make this avocado tuna salad ahead of time?
You can prepare this salad a few hours ahead, but avocado tends to oxidize and brown over time. To minimize this, press plastic wrap directly onto the surface of the salad, squeeze extra lemon juice over the top, or add the avocado just before serving. For best results, consume within 24 hours of preparation.
- → What can I substitute for celery?
If you don't have celery, cucumber, jicama, or water chestnuts make excellent substitutes, providing similar crunch. Bell peppers (particularly green) or fennel also work well. Each alternative will bring its own unique flavor while maintaining that essential crisp texture.
- → Is this tuna salad keto-friendly?
Yes, this avocado tuna salad is keto-friendly. It's low in carbohydrates and high in healthy fats from the avocado and olive oil, plus quality protein from the tuna. Simply skip the optional bread and enjoy it as is, in lettuce wraps, or on cucumber slices for a perfectly keto-compliant meal.
- → What type of tuna works best for this salad?
Both water-packed and oil-packed tuna work well in this recipe. Water-packed tuna is lower in calories, while oil-packed tuna is often more flavorful and moist. For texture, chunk light tuna will give a flakier result, while solid white albacore provides firmer, meatier pieces. Choose based on your preference for flavor and texture.
- → How can I add more protein to this dish?
To increase the protein content, consider adding hard-boiled eggs, chickpeas, or white beans. For a seafood boost, mix in some cooked shrimp or crabmeat. If you prefer meat options, diced cooked chicken or turkey work beautifully. Greek yogurt can replace some of the avocado for a protein boost while maintaining creaminess.
- → What are some serving suggestions beyond bread?
This versatile salad can be served in many ways besides sandwiches. Try it stuffed in tomatoes or bell peppers, wrapped in lettuce leaves for a low-carb option, scooped onto cucumber rounds for appetizers, mixed with cooked pasta for a pasta salad, or simply enjoyed over mixed greens for a hearty salad.