Of all the questions that plague mankind, the one that really burns our mind on a weekend morning is what kind of omelet to order.
Websters defines an omelet as: a dish made of beaten and cooked eggs that are folded often around a filling.
Such a vague definition allow for endless combinations. However some of the common ones include: Cheese omelet (your choice of cheese), Onion, Onion and Cheese. Ham, Ham and Cheese, Ham/Cheese/Onion. Peppers, Peppers and Onion, Peppers/Onion/Cheese, Peppers/Onion/Ham/Cheese, Broccoli, Broccoli and Cheese, you get the idea.
Other common ingrediants include: tomato, olives, spinich, potato, sausage, bacon.
Ingrediants you will be hard pressed to find on a menu would be Chocolate Chips, Bananas, Cherries. However, all of these are likely fillings for a Crepe, which like an omelet, is folded around a filling. However, a crepe isn't an omelet and an omelet isn't a crepe. It is usual to have veggies in an omelet and fruits in a crepe, but less so vice versa.
Which of course begets the questions: which came first the chicken or the crepe.