Are 'cocktail sausages' made from a variety of meats boiled, cured, or smoked — shaken, but not quite stirred together, so to say?

Here in the southern US, pigs in a blanket is typically made from little cocktail smokies wrapped in about 1/3'rd of an uncooked pilsbury cresssant, then tossed in an oven until done. I really thought a sausage roll from Tesco would be similar but it was not... That's when I realized y'all have pretty bad food there (no offense), why did you guys start putting hotdogs in pizza crust? As an aside, I love how orderly everyone queues up for stuff there, almost like a country with functioning adults that teach their kids how to wait their turn.

Same in the regions of the US I’ve been to. Usually little cocktail weenies in pastry here, bacon wrapped is just called bacon wrapped, though.