Cabbage and sausage pasta

I don't know why we had cabbage, but we did, and cabbage comes in large pieces, so we had leftover cabbage. Not really sure what to do with it, we turned to what we know best - glop over pasta! We also had some kielbasa, which made for a really nice beer-braised sausage and cabbage dish, over some whole wheat pasta, which supported those flavors really well.

Slice up an onion, chop up the cabbage, and heat some oil in a frying pan. Add the onion, stir until it softens. Add the cabbage, stir around for a while, then add ~12oz beer. Add the sausage, sliced up, and let that simmer away until the cabbage is soft and most of the beer is gone. Serve over pasta.