To a medium bowl, add the chicken along with cornstarch, salt, lemon juice and 1 tablespoon of oil to marinade.
Prepare the sauce by mixing the ingredients in a medium bowl (soy sauce, oyster sauce, sesame oil, cornstarch, salt, black pepper and water).
Heat up a wok or skillet over medium heat, drizzle some oil and add the chicken and cook for 3 minutes until gently browned but not overcooked. Reserve.
Pour a drizzle of oil to the skillet, add the onions and garlic, cook for 1 minute, followed by the carrots and cabbage leaves, saute for an extra minute.
Transfer the chicken to the skillet along with bean sprouts. Cook for 30 seconds.
Stir the sauce with a spoon to mix the cornstarch well and pour over the chicken and vegetables. Mix well until it thickens and remove from the heat.
Sprinkle sliced green onions. Serve with sesame seeds and rice.
Notes
Use fresh vegetables. While frozen vegetables may seem easy, fresh vegetables add more flavor and texture.Marinate the chicken. To ensure that your chicken is juicy and flavorful, marinate it for at least 30 minutes before cooking.Don't overcook the vegetables. Overcooked vegetables can become mushy and lose their nutrients. Cook them until they are just tender but still retain their crunchiness.