Chop the onion into tiny pieces and put it into a bowl.

Add two eggs into the same bowl.

Add a pinch of salt. (Do not put too much of salt. The cheese already contains a lot of salt.)

Grate cheese into the bowl. (Add as much as you want.)

Beat the eggs along with all the other ingredients.

Heat a pan and add olive oil/butter into it.

Put the egg mixture into the pan and cover the pan with a lid.

Let the egg be cooked for sometime. (Keep checking if the bottom of the omelette has turned golden or not.)

Once the lower side of the omelette is golden, flip the omelette and let the other side turn golden.

Take the omelette out and put it on a plate. Garnish with grated cheese.

Serve it hot with tomato ketchup or cheese dip.