1. Preheat the oven to 350 degrees.
2. Arrange wonton wrappers in a single layer on a parchment-paper-lined baking sheet; coat with cooking spray. Cut wrappers into 1/2-inch-thick strips. Bake until golden brown and crisp, 8 to 9 minutes. Remove from oven and let cool.
3. Meanwhile, in a large bowl, whisk together vinegar, orange juice, peanut oil, soy sauce, sesame oil and chili sauce.
4. Add oranges, peas, carrots, cabbage, scallions, chicken and half the wonton strips to bowl and toss to coat. Divide among four plates and sprinkle with sesame seeds and remaining wonton strips.