In a small bowl whisk together all dressing ingredients and set aside. Meanwhile, add the chicken, avocado and tomato into a mixing bowl. Toss in the chopped dill and as much of the dressing as you like. Stir everything well, then fold in the feta cheese. Pile salad into the lettuce leaves. Serve at room temperature, garnished with additional dill and begin to drink, dine and unwind. Serve and enjoy!