Prepare the green beans: cut the green beans into 3 inches in length. Rinse and set aside
Lightly cook in a pot of boiling water with a pinch of salt for approx 1 min.
Drain and rinse under cold running water
Pat dry with kitchen towels
Prepare the dressing: put the sesame dressing, add mirin, sugar and soy sauce. Stir well. Add salt if needed.
Mix the sesame dressing with the green beans and serve.