Slice the chicken breast into small pieces (2-3 cm long), sprinkle the chicken with salt, ground black pepper, garlic powder, and lemon juice, then let stand 15minutes

Slice the green beans and carrot into 3cm long, also slice tomato, onion, and green chilli into small pieces

Heat the oil in a pan and gently fry the onion and green chilli until it turns to gold colour.

Then add the carrot and chicken and cook for 4-5minutes, then add the green beans and tomatoes and cook for another 4-5minutes.

Add oyster sauce and pinch of salt (if desired)

Remove from heat and taste (add more salt if desired), divide stir-fry among plates and serve with brown rice alongside.