Answer:
I can be quick and then I'm deadly, I am a rock, shell and bone medley. If I was made into a man, I'd make people dream, I gather in my millions By ocean, sea and stream.
What can be swallowed, But can also swallow you?
Who is he that runs without a leg. And his house on his back?
I do not breathe, but I run and jump. I do not eat, but I swim and stretch. I do not drink, but I sleep and stand. I do not think, but I grow and play. I do not see, but you see me everyday.
Goes over all the hills and hollows. Bites hard, but never swallows.
This food is a tortilla filled with cheese and sometimes chicken before being heated or cooked.