From “down under”?

Ok with Vegemite, its a taste you buildup slowly, if you've not had it before, don't go spreading it like its Nutella. (Guaranteed to make your tongue tingle like a 9V battery.)
Its a bit like anchovies, nobody goes & puts a whole jar of anchovies on their pizza, first up, you ease into it. Most of us Down-Unders, have it as kids & get you get used to it,
You have it on bread (preferably toast so the butter melts with it), on crackers with cheese, its a bloody ripper with beer. (Mate its great when you're camping 'cause it doesnt need to be in the fridge).... What is the green Kit-Kats , wasabi?
BTW whats in or is the middle pack of 'dog turd' looking things. (seaweed wrapped..?)