So many vegetables could work here: cabbage, kale, cauliflower, broccoli, parsnips, carrots, squash, etc. If you are using kale and cabbage, slice the leaves relatively finely or at least try to make the vegetables you are roasting together be uniform in size so that they cook evenly. Freekeh is not something I’ve cooked with many times, but I happened to have a bag of it on hand, and I think I’ll be buying it more often. It cooks quickly and has a nice, chewy texture — it reminds me of bulgur.