I only know tacos and avocados about Mexican food.

Tacos, burritos, mole, enchiladas, cochinita, papadzules, chilaquiles, you name it. Mexican food is 10/10.
Real mexican food that is. Not the TacoBell/Chipotle attempt at it.

Buenissimo.

Delicioso.

it's bussin

There is Taco Bell at a U.S. military base in Japan, so I wanted to go there.

Of course , I can't go into the military base. 

There is a great Tex-Mex restaurant near the Fussa military base on the outskirts of Tokyo.

Also there is a Taco Bell in Shibuya, but Taco Bell is not really Mexican food (Although I love it and ate it today).

It's tied for what I miss most about California (the other being the weather).

I have one song to represent the two Mexican foods you need

I think Curry and cheese are best foods of the world.