4-5 tbsp. diced mushrooms, green peppers or cooked vegetables
1 onion finely chopped
dash of grated cheese
dash of pepper
salt to taste
Preheat frying pan on medium heat for 2 to 2 1/2 minutes.
With the fingers, sprinkle a few drops of water on the pan. When they dance in little beads, pan is properly preheated.
Break egg into a bowl and whip briskly with a fork.
Add other ingredients, stir quickly and pour into preheated pan. Till the pan, if necessary, to distribute the omelets evenly.
Then heat to low and cook about 1-1/2 minutes or until the bottom of omelets is firm and lightly browned.
With wooden or plastic spatula, turn omelets over and cook 1 to 1 1/2 minutes
Slip omelets out of pan into plate.