Slice and prepare all vegetables.
Place oil in wok, heat to smoking point. Add cauliflower to wok, stir fry cauliflower until oil coats most of it, add 1/2 cup water, cover wok and cook cauliflower 4 minutes, lifting cover to stir cauliflower 2 or 3 times. Add beans, stir, cover wok and cook ingredients 4 more minutes, lifting cover to stir ingredients, 2 or 3 times. Add broccoli, zucchini, and salt. Stir everything up. Cover wok and cook all the ingredients for a further 7 1/2 minutes, lifting cover to stir ingredients periodically. When all is cooked, place food on platter. If desired, a 1/2 cup of cashews could be sprinkled over all before serving.
NOTE: This is a beautiful vegetable dish that could be served along side of a regular Canadian meal, such as roast beef, broiled steak, chops of all kinds, or all by itself as a main course.