For an extra $3 you can turn any Pizza Hut pizza into an abomination. Works out to 37.5c per 'cheeseburger'.
It's available right now as a crust to select for any pizza.
I couldn't find a link to a Pizza Hut media release, so I linked to LifeHacker instead.
Enjoy… ?
I've just had one right now. Its either a hit or miss to be honest. The meat is not really the same as you'd expect from a Maccas or HJ cheeseburger.
The "cheeseburger" that you're looking at receiving as the crust is more like a sausage roll's type of meat. However, try it out and get your own opinions.
Warning: When you choose to upgrade the crust to cheeseburger, you'll be receiving a substantially smaller pizza. I was disappointed. $15 for a pizza the size of the Mia's.