Drain and rinse your white beans to remove excess liquid. Drain the canned tuna and thinly slice the green onions. Prepping ingredients beforehand makes combining them easy and mess-free.
Add the beans, tuna, and green onions to a mixing bowl. I like to break up the tuna gently with a fork so it’s chunky but not mushy.
Pour in the olive oil and lemon juice, then sprinkle with salt and freshly cracked pepper. Stir everything together to coat evenly. Taste and adjust seasoning as needed.
You can serve the salad right away or chill it in the fridge for 15–30 minutes to let flavors meld. I personally like it slightly chilled for a refreshing lunch.