Dry the chicken with paper towels. Next, coat the chicken with the cornstarch and salt. Omit if using full sodium tamari or full sodium gluten free soy sauce. Set aside.
Par cook the broccoli flowerets and stems by steaming for 2-3 minutes or in a small amount of water covered in the microwave for 2- 2 ½ minutes. Drain and set in a cold water bath.
Heat the skillet or wok with 2 tablespoons of oil . Add the chicken in batches, cooking until brown and done. Remove to a bowl. Cover. Then repeat with the other batches.
Scrap out the skillet. Add another tablespoon of oil. Add the diced onion and bell pepper and remaining ginger and garlic. Sauté over medium or medium low stirring often.
When the vegetables are softened and lightly golden brown, add the par cooked broccoli and the cooked chicken back in. Move to one side of the skillet. Pour the sauce into the other side and stir and cook until thickened.
Stir the vegetables and chicken into the sauce and coat completely.
Serve with a handful of cashews over the top. Sprinkle with toasted sesame seeds if desired or sliced green onion.