How can I use up a large quantity of egg?
Perhaps some breakfast strata would do the trick.  I don't know how many ingredients you're looking for, but the basic recipes would (in addition to eggs) include bread, butter, cheese, milk or half-and-half, and a few meats, vegetables, and/or herbs.  I've seen variations that use potatoes and rosemary, some that use bacon and scallions, some that use spinach or asparagus.  Quite a variety.

My favorite ones are behind a paywall, but if you subscribe:
http://www.cooksillustrated.com/recipes/506-breakfast-strata-with-sausage-mushrooms-and-monterey-jack
(Cooks Country also has a strata-inspired recipe called Featherbed Eggs that I love.)

Otherwise, you can find strata recipes anywhere:
http://www.food.com/recipe/ham-asparagus-strata-85885

Another one I quite enjoy is called Eggs Piperade, which is essentially scrambled eggs with a stir-fry of peppers, onions, and tomatoes.