Answer:
I'm a thick slice of beef or other high-quality meat or fish that is often cooked on a grill or fried.
What is round, has a twin, and sees more than most?
What starts out in a field and then crashed on a stone. It becomes much more when to the fire it's thrown?
Alight or in dark, my face is a leer. In a field with my brothers, you’ll find me without bother, For that autumn day is mine.
A box without hinges, key, or lid yet golden treasure inside is hid. What is it?
I’m grown from darkness but shine with a pale light. Very round I am and always a lady's delight.