Prepare 1 pound yard-long beans following directions for cooked fresh beans. Drain and immerse in ice water. When cold, drain.
For each portion, gather 6 to 8 beans by the stem end and loosely coil or tie into a loose knot.
In a small bowl, mix 1/4 cup soy sauce with 2 tablespoons Asian (toasted) sesame oil and pour over beans.