We recommend a tube of fresh and ready to eat Ancient Harvest, San Gennaro Traditional Corn Polenta. You will find this in the deli section of most supermarkets.
You may use one large bok choy (these are the size of a full head of celery) or 6 small baby bok choy.
*if you only have on large baking sheet, make a little tray with foil, by turning up each side and pinching it together. You can do the same for the polenta and broil them side by side on one pan.