I used a variation of Kalyn's kitchen: http://www.kalynskitchen.com/2005/07/broccoli-cheese-breakfast-casserole.html
I changed it a little bit - for example, I only used 9 eggs, I used chopped broccoli, and I added garlic and oregano.
It was delicious, although I think because I used less eggs it was a little flatter than the one in Kalyn's pictures. :)