Answer:
What is that over the head and under the hat?
Though not a plant, has leaves. Though not a beast, has spine. Though many wouldn't need this thing, It's more valuable than wine.
Mobsters judge the quality of a vehicle by the size of this
Pirates put their booty in it.
What has a mouth but can't chew?
This food is a tortilla filled with cheese and sometimes chicken before being heated or cooked.