In a medium mixing bowl, combine chicken, ginger, soy sauce, dark soy sauce, oyster sauce, sugar and cornstarch. Let marinate for at least 30 minutes or up to overnight, covered in the fridge.
Preheat the oven or toaster oven to 375℉. Cut 12 wonton wrappers into ½ – ¾ inch strips. Lay them down in a single layer on a sheet pan and spray with cooking oil. Bake in the preheated oven for 3-5 minutes until golden. Remove and set aside until ready to add to the salad.
In a small bowl, combine the salad dressing ingredients, set aside.
In a frying pan, on medium/high heat, add cooking oil and chicken. Cook for 5-7 minutes on each side until cooked through. Alternatively, cook them on the grill.
Let the meat rest for about 5 minutes.
Assemble the salad in a large salad bowl. Place salad mix on the bottom. Season with salt and pepper. Pour dressing evenly over the greens. Arrange chicken, avocado, mango and wonton strips on top. Garnish with cilantro, green onions and sesame seeds. Toss and serve.