Answer:
Flat as a leaf, round as a ring. Has two eyes, can't see a thing.
A word I know, six letters it contains. Subtract just one and twelve remains.
What has a mouth but can't chew?
It doesn't live within a house, nor does it live without. Most will use it when they come in, and again when they go out.
What has 4 legs in the morning, 2 legs in the evening and 3 legs in the night?
This food is a tortilla filled with cheese and sometimes chicken before being heated or cooked.