I have lived in Tokyo these last six years, and I have to say, I just love MosBurger.
We used to live in Singapore, and learned to love it there, where it is much more accesible to english speakers/readers.
After moving to Japan, we couldn't read the menu, but were able to front up and ask for a yakiniku rice burger (which hasn't been available for the last 3 or 4 years, since US beef was banned here. Not sure if its back yet).
Even the fries at Mos are divine, but served in a characteristically teeny tiny Japanese sized portion (I'm talking maybe a dozen fries in the small size).
The rice burgers have rice instead of bread (a bit like two flat onigiri with stuff in the middle.)
The Mos burger has a really yummy suace on it thats tasty and drippy. I would be really grateful if someone could identify it for me.
Other chowhounds, what is your favourite mosburger thing?