Wide is what you get with Burger King Japan's 8.8 inch (22cm) diameter Pizza-Size Burger. Note that only the buns are extra-wide, and in between are four regular Whopper-sized beef patties arranged in a four-leaf-clover pattern. The fillings and toppings are also normally sized, but at least they're provided in abundance.
 
You can order the Pizza-Size Burger in two different styles, though both styles are served in an odd “half & half” format with one half featuring the everyday Whopper's toppings of tomato, onion, pickles, ketchup, and so on. Slices of fresh avocado are added to the, er, “Fresh Avocado” version and tortilla chips, cheese sauce, and jalapeno peppers occupy half of the “Cheese Nacho” version. Cut it up as you would a pie (or a pizza, duh) and dig in!
 
8. KFC's Double Down

these new penne pastas are $5.99 each and are available in six choices: chicken carbonara, Italian sausage marinara, snot rocket, chicken alfredo, pasta primavera, three cheese mac-n-cheese, and a “build your own” version which allows you to you choose three pizza toppings.
 
10. Pizza Hut's Double Sensation



The pizza, aptly named the "Double Sensation," is practically two pies in one. The outermost crust is stuffed with melted mozzarella, Parmesan, and cheddar cheeses that ooze out of holes in the crust, and the outer pie is topped with turkey, ham, bell peppers, and a mushroom and salsa sauce.
 
The inner crust is filled with chicken sausage and cheese, and the innermost pie is topped with smoked chicken, zucchini, and a pepper Alfredo sauce.
 
Sadly for us, this insane pizza is only available in Singapore through the end of December 2012. It's being sold for the bargain price of roughly $21.75 for a regular-size 10" pizza and $27.49 for a large 13", and it's also available as part of two Christmas feast deals.