In a ziplock bag or large bowl toss sliced steak with cornstarch or Massa. Coat evenly.

Cook rice according to package directions.

Heat large skilled to high heat and and vegetable oil. Add steak in a single layer and cook each side about 1-2 min. until edges just start to brown. Work In batches if needed. Remove and set aside.

In a small bowl combine soy sauce, brown sugar, water, ginger, and garlic. Add sauce to the skillet and bring to a boil. Add steak and allow to thicken. About 10 min.

Toss with green onions and sprinkle on red pepper flakes. Serve over rice.