This is another blend of a couple of recipes, from here and here. Ham seems to be a popular add-in to split pea soup in North America, but more often than not I make it as below for days when I'm vegan. I think this recipe is delicious as is, but feel free to add some ham or bacon if you're wanting that richer flavor in the end product!
I was catching up on the videos of one of my favorite YouTubers, Beryl Shereshewsky, and she reminded me in one of her recent videos about the existence of one of those classic staples of the church potluck, the broccoli chicken casserole! The video as a whole really took me back to that world of very classically American potluck cookery, and left me with a craving for some broccoli chicken casserole in particular! (Also, I had some broccoli and chicken that I needed to use up...)