Chickpea and Chicken Salad

Ingredients

• 300 g. (10.6 oz / 0.66 lb) cooked canned chickpeas
• 1 chicken breast cooked and cut into cubes
• 1 onion cut into small squares
• 2 tomatoes, diced
• Fresh cilantro to taste
• Lamb's lettuce to taste
• 4 tablespoons olive oil
• 4 tablespoons white wine vinegar
• Salt and pepper to taste