Which part of the pak choy can you eat?

You can eat all parts of pak choi, including the leaves, stems, and flowers. The leaves are the most commonly consumed part of the plant and have a mild, slightly bitter flavor. The stems are also edible and have a slightly crunchy texture. The flowers are small and white and can be used in salads or as a garnish. Pak choi is a versatile vegetable that can be used in soups, stir-fries, salads, and other dishes.