Place chicken in greased roasting pan and cook in preheated high-speed gas oven. Do the same with carrot and leek. Soak seaweed until soft, and blanch in boiling water for a few seconds. Drain in colander and cut into 2 cm pieces.
Cut cherry tomatoes into half.
Toast sesame seeds and chop roughly. Mix all dressing ingredients until well blended. When chicken is done, thinly slice diagonally into bite-size pieces. Pour half of dressing over slices. Osaka Gas Co.,Ltd.