In a medium mixing bowl whisk together eggs, salt, pepper and any of the desired add-ins. Divide and pour the egg mixture into re-sealable plastic bags.
Boil a large pot of water and drop in the sealed omelette bags. Simmer the bags for 5 to 8 minutes. Remove bags from the water with tongs and drain them on a paper towel lined plate.
Allow to cool slightly before handling. Open the bags and pour the cooked omelet out onto a plate.