A junk food starting with O is Oreo's. :)
Julian Opie
the first one is orange
The oesophagus, your food pipe,
oeuf (egg) oignon (onion) oie (goose) olive
A herb beginning with the letter "o" is oregano.
Well the food beginning with 'z' is hmm...
Countries beginning with O: Oman Countries beginning with Q: Qatar
The British were winning at the beginning.
an orthadontist
Ostrich!
Ohio