I've made this several times. It is a great recipe to modify. The last time I made it, it omitted the ham. I used 5 whole eggs and 5 egg whites, 1.5 cups shredded mex. cheese. I added 2 tsp. hot sauce, 1/2 yellow pepper chopped, 2 roma tomatoes chopped, handful of chopped spinach, and 1/2 cup corn. Bake for 45 minutes, and it is GORGEOUS and DELICIOUS.