What is a key ingredient in the American Omelet?

The American Omelet is typically characterized by its simple yet classic ingredients, usually including eggs and a variety of fillings such as cheese, meats, and vegetables. Steak, as a hearty protein option, is an ingredient that can certainly be included in the American Omelet to enhance its flavor and provide a robust meal. This choice reflects the traditional approach to American diner fare, where substantial ingredients are favored to create a filling dish that appeals to a wide range of tastes.

The other options, while they may be used in various omelet recipes, do not align as closely with the standard definition of an American Omelet. Feta, for instance, is more commonly associated with Mediterranean-style dishes, and spinach, while popular, is often seen in variations like the spinach and feta omelet. Sausage, on the other hand, is frequently used in breakfast items but does not define the American Omelet as distinctly as steak does. Thus, steak serves as a key ingredient that signifies a hearty, protein-rich American Omelet.