You can use any green veges for this dish. Had to include 3 specifically for the recipe to be posted. Use whatever is in season. eg chinese cabbage, asparagus, broccoli, snow peas, capsicum etc. Traditional Chinese stir frys do not contain more than three types of veges. I have heard it said that more than three would look like you are cleaning out the fridge. This dish is naturally gluten free. If adding sauces such as soy before serving- check they are GF too.