Sauté the beans. Heat a wok over medium-high heat then add the sesame oil. Add the green beans and cook for 5 to 7 minutes, stirring occasionally.
Make the sauce and toss with beans. Combine all the sauce ingredients together then pour over the green beans and toss well. Cook for another 3 to 5 minutes, stirring occasionally.
Garnish and serve. Garnish with sesame seeds and serve.
