Answer:
This baked dish consists of an open-topped pastry case with a savory or sweet filling.
It nukes food at the touch of a button.
Green but not a lizard, white without being snow, and bearded without being a man.
What is round, has a twin, and sees more than most?
I'm a small sweet cake, typically round, flat, and crisp. I come in a variety of flavors from chocolate chip to oatmeal raisin.
What is always coming but never arrives?