Preheat oven to 200 C temp.
Place chicken breast in a glass dish. Pour the oil, sprinkle the spices. Coat them from both sides.
Bake, according to the size of breasts, about 18-24 min. Take out of the oven. Cover the dish and take a rest for about 5 min.
In a big bowl, mix all ingredients, except chicken breast and avocado.
In a small bowl, mix all dressing ingredients. Pour on the salad and combine.
Serve with chicken breast and avocado.