Agree with much of what you're saying re: mustard and its uses Bum, it's essential in cheese sauce (Dijon) and cheese scones (mustard powder)
I like a honey & wholegrain mustard glaze on a pork chop but super especially on a good quality banger (with bacon wrapped round and made into toad in the hole) and Dijon again when making burgers as beef loves a bit of mustard imao