For a bistro-style omelet, you should use a small non-stick skillet. The skillet should be coated with non-stick coating, which prevents the egg from sticking. You should also use a heat-proof rubber spatula to stir and roll the omelet. If you're making a larger omellet, you can use a bigger frying pan. Using a smaller skillet will give you more control.
This website provides approximate nutrition information for convenience and as a courtesy only. Nutrition data is gathered primarily from the Spoonacular Database, whenever available, or otherwise other online calculators.