[Nyororin]

I have yet to meet someone in Japan who didn`t absolutely love Taco Bell if they`d eaten it in the US.
But for some reason there are none in Japan off of military bases.

There are a number of smaller "Mexican" restaurants, and pretty much everyone knows what a taco is - but it has yet to hit mainstream. I have to say, it`s getting closer though as you can now find all the ingredients at a regular grocery store now. Pizza places also offer "taco pizza".

Just a matter of time, I presume.