Drain the tuna and place it in a mixing bowl.
Chop the lettuce, tomatoes, and cucumbers into bite-sized pieces.
Add the chopped vegetables to the bowl with tuna.
Pour in your preferred dressing (mayonnaise or vinaigrette).
Mix everything until well combined.
Season with salt and pepper to taste.
Serve the salad on a plate or in bowls.
Garnish with fresh herbs like parsley or dill.
Enjoy your refreshing tuna salad!