Put rice on to cook with a pinch of salt and a few drops lemon juice or rice vinegar. Cut up chicken breasts into bite size pieces. lightly salt, then flour the chicken pieces.
Dice half an onion and brown in oil in the pan. Add the chicken and more oil to give it a sear all around. Remove chicken from pan. Add mushrooms to pan start searing. Add to pan the half chopped onion, stick of celery, carrot and large diced peppers. Add the chicken back in and toss all till the chicken is cooked through and the vegetables have started to soften. Add a few drops sesame oil and chinese fish sauce. It smells like dirty socks but leaves a wonderful flavour if it's not overcooked.
Fern had the rest for lunch and said it was terrific even reheated.