This is my mom’s recipe and an old family favourite. Like the purple cabbage slaw, this is easy and the components can be made ahead. If you think you have too much salad I recommend only dressing some of the suey choy (aka Napa cabbage) and using only a portion of the crunchy bits (once mixed into the salad they only last a few hours as they go soft overnight in the fridge and the best part of the salad, the crunch, is lost).
Make Ahead: I often shred the suey choy and put it in a Ziploc and squeeze the air out. The “crunchy bits” can be prepared and saved in an airtight container as can the dressing. All that’s left is to mix and serve.