In a small mixing bowl combine olive oil, lemon juice, salt, and pepper; whisk to combine.
Pour the dressing over the salad and toss to combine.
Serve!
Notes: What kind of tuna to use?Both tuna in oil and tuna in water can be used. Although, the tuna in water version is healthier.How to store avocado and tuna salad?This salad is at its best on the day of preparation, but if you have a salad left, cover it, keep it in the fridge and serve the next day.More Salad Recies: