In a large frying pan, fill half way with water and bring to a low simmer.
Add greens bean for 3-4 minutes, or until tender. Cooking times will differ depending on the size of your beans. Remove to a colander and rinse with cold water to stop to the cooking process. Drain well and set aside.
In a small bowl, whisk together remaining ingredients.
Over medium-low heat, heat sauce, stirring, for about 3 minutes. Toss with greens beans.
Remove to serving platter and garnish with sesame seeds, if desired.
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