MethodHeat the oil in a wok over a high flame and add the onions and capsicum and sauté on a medium flame for 1 to 2 minutes.Add the cauliflower, carrots and cabbage, mix well and cook on a high flame for 2 minutes, while stirring occasionally.Add the prepared sauce and salt, mix well and cook on a medium flame for 2 to 3 minutes, while stirring continuously.Serve hot.