Marinate flank steak in marinade for 1 hour or up to overnight. Drain and discard marinade.
Make salad: In a large bowl mix together the greens, cucumber, scallions, sesame seeds and cilantro.
Grill or broil steak until cooked to medium, about 6 min per side. Slice meat and serve with a salad and dress with an Asian dressing.
Notes
I keep Asian dressings in stock at my house. I will make a batch and use it throughout the week. Make your own from this salad: Asian Slaw with Ginger Sesame Dressing