Cook the macaroni in a pot of boiling salted water until tender. Drain. Place in a mixing bowl and mix in the cheese.
Prepare the recipe for Creole Sauce if you are going to use that.
Add the egg whites to a large mixing bowl, use an electric mixer and beat the whites until stiff peaks form, set aside.
In another mixing bowl, add the yolks and salt, beat with an electric mixer until lemon colored.
Mix the egg yolks into the macaroni.
Fold in the egg whites.
Preheat your oven to 160° C (325° F).
Heat the butter in a 10 inch oven proof pan, pour in omelet mixture. Cook on low heat until lightly browned on the bottom, about 8-10 minutes.
Place pan in the oven and bake until the top is golden brown, about 5-7 minutes.
Loosen edge with a spatula, make a shallow cut across the center of the omelet and fold in half.
Place on a serving plate and serve with warm Creole Sauce as desired. Enjoy.