Answer:
What is this Mexican dish consisting of a tortilla rolled around a filling, typically of beans or ground or shredded beef?
Four kings of whom I am one lord. Often on deck but never on board. Though I have a large heart, I am always seen at war. During which I always wear a suit, but never a suit of armor. Who or what am I?
You fill it and it empties, A metaphor for plenty, Depending on what half you see, It's either full or empty
The eight of us go forth not back to protect our king from a foes attack.
Controlled by your hands and feet. It would be nothing without a street. What is it?
It flows out of the soil, It burns you if it boils, And holds us in its coils, More valuable than gold, As black as it is old.