Answer:
What is the only chain we can eat?
This food is a tortilla filled with cheese and sometimes chicken before being heated or cooked.
What has ears but can't hear?
This food is usually grilled and put between two buns, with cheese, tomato and pickles.
Before crust hardens.
I stand in one place yet fill the whole room. I can be filled with molten rock and come in every hue. What am I?