I hate blood sausage nor am I a fan of Heinz Baked Beans on my toast. I love the regular English sausages with real English bacon though.
I don’t think of canned beans on toast, but will admit that they could be used and a taste for them developed.
About 5 years ago, I was kinda doing a version of them, a slice or two of bread, a layer of Pork and Beans, a layer of lettuce, fresh tomatoes, chopped onions and whatever else in the salad line I had, plus a healthy drizzle of ranch dressing.
It suited my taste and I ate it for months...........LOL, then quit.