Mum's omelet:
crack eggs (never more than 2) into bowl and whisk with 1 tablespoon of milk. coat bottom of pan with butter. when it sizzles, place the pan on the top rack of oven and turn on broiler for 1 minute. remove. Sprinkle slivered green onions, chopped tomatoes, sauteed mushrooms and cheese on one half and fold the eggs over into a half circle. Serve hot.