That would be a good idea except that this is before Regina went to her to get the dark curse back. When Regina went to see her in the second episode she was in human form.
YOU may be right. But wouldn’t she mention someone stuffed an egg in her or maybe she does not remember. Although a fight with CHARMING would be hard to forget. Also WHY did she not TURN into the dragon when she fought with Regina… she could have really toasted/ fried her.