In my experience anytime I have a egg eater upping their protein stops it.Im wondering though if she needs more protein...
Buying a higher protein level feed is the easiest option.
I occasionally feed mine ground whole and cooked fish the kid's catch (never have noticed any fishy flavor in the eggs doing this) . Sometimes I buy dollar store dried beans and either sprout and feed or soak and cook and feed, one or the other must be done in order for them to be edible.
Many times I just feed back scrambled eggs. I've even just boiled up a bunch and ran the whole eggs shell and all through the cheap hand crank meat grinder I also use to grind whole fish.
I don't mind feeding them back eggs being we usually have tons of them, but I DON'T want them eating them out of their nests.