To prepare a Zippy Egg Casserole recipe, first you need to prepare your ingredients. First, you will need your eggs. You can buy eggs at your local grocery store, or you can make your own at home. If you don't have eggs, then you'll need some other kind of egg substitute, such as ham or bacon. Then, add the ingredients to your bowl and mix them together until everything is well combined. Now, it's time to bake the casserole. To bake your zippy egg casserole, preheat the oven to 375 degrees F (190 degrees C) and bake for 20 to 25 minutes or until the egg whites are set and the top is golden brown.