1. Put the chicken in a glass or marinade bowl along with the rest of the ingredients. Mix well, cover and marinate in the fridge for at least 15 minutes.
2. Heat the oil in a nonstick pan and stir-fry the chicken until done. Set aside to cool.
3. Salad: Arrange the salad greens, cucumber and pineapple on a large plate. Top with the chicken and avocado and season with the lime or lemon juice.