Answer:
A leathery snake, with a stinging bite. I'll stay coiled up, unless I must fight.
I turn around once. What is out will not get in. I turn around again. What is in will not get out.
If you spot one of these eastern warriors, they're not doing their job right.
Sometimes I am loud. And viewed with distaste. Poke out my 'eye', then I'm on the front of your face.
Thousands lay up gold within this house, But no man made it. Spears past counting guard this house, But no man wards it.
This food is a tortilla filled with cheese and sometimes chicken before being heated or cooked.