Brush ciabatta slices with combined butter and garlic, then brush chicken fillets with remaining garlic butter.

Heat a non-stick grill pan or BBQ over medium heat and cook chicken 4-5 minutes each side until cooked. Remove, cover and allow to rest.

Place ciabatta on a baking tray and cook under a preheated grill for 2 minutes each side or until golden.

Cut chicken into thick slices, break bread into smaller pieces then arrange on a serving platter along with lettuce, tomatoes and avocado. Drizzle with dressing and serve.