Notes:

425 is waaaay to high.
lower to like 300 degrees with nice thick slices

Cut 2 lb onion into 1/2 in thick leave outer
Brush pan w/ oil roast 1 hr one side 30 min on the other.
Let cool and serve with a vinegrette w/ some crushed red pepper for heat 


vinegrette:
olive oil, oregano, balsamic, pinch sugar, crushed red pepper, salt, pepper.