Drain and rinse the white beans
Dice the cucumber and cherry tomatoes
Slice the fresh basil
Juice the lemon and zest it
Combine white beans, diced onion, cucumber, cherry tomatoes, and basil in a bowl
Add capers, salt, and pepper
Drizzle with olive oil and red wine vinegar
Add lemon juice and zest
Flake the tuna and fold into the salad
Mix gently and serve
