It's a roll, or more specifically they're called morning rolls, or at least that's what the company who delivers food for my work calls it.

Sausage buttie.

I can't believe everyone has got this wrong.

It's a muffin.

(North Manchester / Lancs)

I just call those bread rolls. It reminds me of when I first when to Scotland and went to a shop and asked for a bacon roll. They looked at me like I was mad and said, you mean a roll and bacon?

Miniature bread loaf

Bap

Is it a roll, a bap, a cob or a flibble?

I switch between bap, teacake, oven bottom muffin.

And surely a roll on sausage is a roll between two sausages.