
This hearty Italian tuna salad has transformed my weekday lunches with its fresh Mediterranean flavors and simple preparation. Packed with vibrant vegetables, olives, and dressed in olive oil and lemon juice instead of mayo, this recipe delivers a protein-rich meal that tastes like summer in Italy.
I first discovered this style of tuna salad while working at an Italian diner in Rhode Island years ago. Though I initially found their version too fishy for my taste, it inspired me to create my own "fussy-girl" adaptation that has since become my go-to protein-packed lunch.
Ingredients
- Yellowfin Tuna: in Pure Olive Oil undrained for the perfect amount of natural dressing and premium flavor
- Fresh diced tomatoes: add juicy brightness and Mediterranean authenticity
- Fresh parsley: brings a clean herbal note that elevates the entire salad
- Black olives: provide briny depth and classic Italian character
- Sweet yellow pepper: adds crunch and a touch of natural sweetness
- Red onion: delivers a mild pungency that balances the other flavors
- Green olives: contribute extra texture and Mediterranean flavor
- Fresh garlic: infuses the entire salad with aromatic complexity
- Lemon juice: brightens everything with essential acidity
- Sea salt: enhances all the flavors without overwhelming
Step-by-Step Instructions
- Open the Tuna:
- Carefully open the tuna cans directly into your mixing bowl. The key is to drain nothing as the olive oil becomes your dressing. Gently break up larger chunks while still maintaining some texture. Quality yellowfin tuna will have beautiful large flakes that deserve preservation.
- Prep the Vegetables:
- Dice all vegetables to a uniform small size about 1/4 inch to ensure balanced flavor in each bite. Make sure to drain excess liquid from tomatoes to prevent a watery salad. The parsley should be finely chopped focusing on leaves rather than stems for best texture.
- Combine Ingredients:
- Add all prepared vegetables, herbs, olives and seasonings to the bowl with tuna. Hold off on mixing until everything is added to prevent overworking the tuna. The goal is to maintain those beautiful flakes rather than creating tuna mush.
- Final Toss:
- With gentle folding motions, combine all ingredients just until evenly distributed. The olive oil from the tuna will naturally coat everything, while the lemon juice brightens the flavors. Taste and adjust seasoning if needed, though the olives typically provide sufficient saltiness.

The parsley is actually my secret favorite ingredient in this recipe. While many people treat it as a mere garnish, in Italian cooking it plays a crucial flavor role. I learned from an Italian grandmother that parsley should be treated with the same respect as basil or oregano. She would clip fresh parsley from her garden window box for every meal, insisting that store-bought was never quite the same.
Serving Suggestions
This versatile tuna salad truly shines in multiple presentations. For a traditional approach, pile it generously on ciabatta bread with perhaps a few extra slices of tomato. The crusty Italian bread provides the perfect vehicle for capturing any escaped olive oil and juices. For a lighter option, serve it atop mixed greens with a few lemon wedges for an elegant lunch salad.
For entertaining, consider serving this as an appetizer by spooning small portions onto cucumber slices or endive leaves. The presentation looks impressive while remaining effortlessly simple. It also pairs beautifully with a chilled glass of crisp white wine like Pinot Grigio.
Ingredient Substitutions
While yellowfin tuna creates the best texture and flavor, you can substitute solid albacore in a pinch. Just ensure it's packed in olive oil rather than water for authentic Italian flavor. If fresh tomatoes aren't at their peak, sun-dried tomatoes can provide concentrated flavor especially in winter months.
For those watching sodium intake, reduce the olives by half and add more fresh vegetables like cucumber or celery for crunch. You can also experiment with different fresh herbs, though parsley remains the classic choice. Basil makes a wonderful summer variation when it's plentiful.
Storage Tips
This tuna salad keeps beautifully for up to two days in the refrigerator. Store it in an airtight glass container rather than plastic to prevent absorbing flavors. The flavors actually improve slightly after a few hours as the ingredients mingle. If making ahead for sandwiches, store the salad separately from bread and assemble just before eating to prevent sogginess.
For best results, allow refrigerated salad to sit at room temperature for 10 minutes before serving, as cold temperatures can dull the flavors of olive oil. Give it a gentle toss before serving to redistribute any settled dressing.

Frequently Asked Questions
- → What type of tuna works best for this salad?
Yellowfin Tuna packed in olive oil works wonderfully as it adds richness to the salad. Albacore tuna can also be used if preferred.
- → Can I substitute the vegetables in the salad?
Yes, you can customize the salad with other low-carb vegetables like cucumber or celery while keeping the flavors balanced.
- → How can I serve this Italian Tuna Salad?
This salad is versatile. Serve it as a stand-alone dish, pair it with ciabatta for a sandwich, or enjoy it over a bed of greens.
- → How long can I refrigerate this salad?
The salad can be stored in an airtight container in the refrigerator for up to two days to retain its freshness and flavor.
- → Is this salad suitable for keto diets?
Yes, this salad is keto-friendly as it’s low in carbs and high in healthy fats from olive oil and tuna.