Mediterranean Chicken Salad - A better choice!

Ingredients

• 2 chicken breasts
• 1 tsp ground coriander
• 1 tsp dried oregano
• Salt & pepper, to taste
• 4 tbsp olive oil
• 3 tbsp red wine vinegar
• 1 tbsp parsley, chopped
• 4 cos lettuce hearts, chopped
• 1 large cucumber, thinly sliced
• 1 punnet cherry tomatoes, halved
• 2 avocados, thinly sliced
• 100g feta, crumbled
• ½ cup pitted kalamata olives, halved