It's been one of my favorite veggies since forever. One of my favorite ways to have it is in the form of a dry stir-fry - with some green chillies, a pinch of turmeric, a tomato and some TVP chunks. You can have it on its own, or with some flatbread or in a sandwich.
Cabbage is also my go-to filler for dumplings (along with mushrooms). Drizzle with some soy sauce, vinegar and chilli oil (Lao Gan Ma is yum!). Add spring onions if you're feeling fancy. Or you could garnish with togarashi and wakame on top if you want to make it a bit Japanese-y.