Prepare the Crispy Chicken Strips according to package directions. Cut into 1-inch chunks.
In a small bowl, whisk the orange zest and juice with the cornstarch. In a large skillet, heat the oil over medium heat. Add the scallion whites and cook, stirring, until just tender, about 1 minute. Add the soy sauce, vinegar, and sugar and cook, stirring, until the sugar dissolves, about 30 seconds. Stir in the orange juice mixture. Bring to a boil and boil for 15 seconds.
Add the chicken and toss to coat. Top with scallion greens and serve hot.