You stand over the stove, armed with a spatula. You slowly wedge the spatula under a partially cooked omelette and try to fold it over. The eggs fall back, losing the folded shape. Avoid this frustration by using a folded omelette pan. This type of pan forms the eggs into the proper shape without your needing to do any extra work.
Crack the eggs into the bowl. Throw away the eggshells. Break the yolks with the fork.
Pour the ham, onions and cheese into the bowl. Stir the eggs and other ingredients in the bowl.
Spray both sides of the omelette pan with cooking spray. Place the omelette pan on the burner. Only one side sits on the burner. Open the pan.
Pour the egg mixture into the pan. Close the pan. Turn on the stove burner to medium heat.
Flip the pan after three minutes. Cook the omelette for an additional three minutes. Open the pan to see if the omelette is cooked thoroughly. It shouldn't stick to the pan if it's done. Turn off the burner and scoop the omelette out with a spatula.