Meat paste sandwiches are ( and don't read any further if you are at all squeamish)....made from potted meat paste, which purports to be of various flavours...beef, chicken etc.etc. Worryingly they are all of the same consistency ( that of mud), the same colour ( that of pale mud)and much the same taste ( you've guessed it). Heaven alone knows what bit of the animal, should an animal actually be involved, is used to make meat paste but my father always used to say it was ( forgive the vulgarity) "lips and arseholes"....and I suspect he was right.