Answer:
What kind of a nut has a hole?
What is round, has a twin, and sees more than most?
A time when they're green. A time when they're brown. But both of these times, cause me to frown. But just in between, for a very short while. They're perfect and yellow. And cause me to smile.
This baked dish consists of an open-topped pastry case with a savory or sweet filling.
I'm a pie, but I come with peperoni and cheese
By Moon or by Sun, I shall be found. Yet I am undone, if there's no light around
Food
Animal
Difficult
Easy
Funny
Kids
Logic
What am I?