Souper december: Grandma's hotpot (with Kale)

My Grandma used to make hotpot every Saturday - and we loved it when we went to visit.  Grandad made it occasionally too - but he put carrots in his.  I have committed an even worse crime and added kale.  Sautee chopped onion in olive oil, add chopped beef, brown, add stock.  Simmer for a while, add potatoes, simmer more - season.  About 10-15 minutes before serving add kale.  Slurp, get instantly transported to kitchen in Stockport circa 1978.  Victim loved it too (except for the kale, of course).