Heat ghee or butter in a pan. Pour the mixture in a non-stick pan and fry for 2 minutes on medium heat. Slide a spatula under the omelette to loosen. Then slide the omelette in a large plate. Flip the omelette back to pan and cook for another 2 minutes.
Sprinkle cheddar cheese and let it melt. Fold the omelette and serve with lettuce and olives.