Answer:
This is a baked snack that is traditionally twisted into a unique knotlike shape.
What is eaten by man, served among many, grown by many, and white as snow?
I ate one and threw away two
Come November 1st, many of these will be found smashed on sidewalks
This greek dish is similar to a taco or pita sandwich in appearance. It is made with a fatty meat in a taco shell shaped flatbread with tomatoes, lettuce and other veggies.
By Moon or by Sun, I shall be found. Yet I am undone, if there's no light around