For a richer flavor, use whole milk or cream instead of 2% milk. If you prefer a firmer omelet, cook the egg mixture for a slightly longer time. Adjust the amount of corned beef, sauerkraut, and cheese to your personal preference. A sprinkle of fresh parsley or chives can add a touch of freshness to the finished omelet. Feel free to experiment with other cheeses, such as Gruyere or Emmental, for a different flavor profile.