until hot but not smoking. Add bok choy and cook, stirring briskly, for 1 1/2 to 2 minutes, until it is bright green and well seared. Remove from heat, drape with cashew sauce and serve at once. Yield: 4 servings. Approximate nutritional analysis per serving: 340 calories, 25 grams fat, 0 milligrams cholesterol, 1,065: milligrams sodium, 7 grams protein, 25 grams carbohydrate. ** New York Times -Living Arts section -29 November 1995 **