The main ingredient in a traditional omelette is eggs. An omelette is a dish made from beaten eggs, which are cooked in a frying pan until set. Often, additional ingredients such as cheese, vegetables, and meats are added to enhance flavor and texture. The eggs are typically cooked until they are firm but still slightly soft and creamy on the inside. Omelettes can be served plain or folded over to enclose the fillings. They are a popular breakfast option around the world, appreciated for their simplicity, versatility, and the ability to customize with various toppings.