An omelette is made by beating eggs and cooking them in a pan until set. You can add fillings like vegetables, cheese, meat, or herbs before folding it over to serve. There are various styles, including French, Spanish, and American.
Whisk the eggs and finely chop the onion, green bell pepper, and red bell pepper.
In a medium non-stick skillet, melt butter over medium heat. Add the onion, green bell pepper, red bell pepper, and ham. Cook for 5 minutes, then set aside.
In a separate small non-stick skillet, melt butter over low heat. Pour in the beaten eggs and cook for 2 minutes. Add the filling on one side of the omelette and sprinkle with cheese. Cover and cook for an additional 3 minutes.
Fold the omelette in half and transfer it onto a plate. It's ready to be served.