Sicilian olive, tuna and cannellini bean salad

Name: Sicilian olive, tuna and cannellini bean salad
Cuisine: European, Italian, Mediterranean
Ingredients: 95g tin tuna in chilli oil, drained; 100g drained tinned cannellini beans; Small handful of pitted Sicilian green olives; 2 handfuls of mixed salad greens; 1 ½ tbsp extra virgin olive oil; Zest and juice of ½ lemon; 3 tsp chopped parsley leaves; 1 tsp baby capers