1. Beat eggs with yogurt, salt and pepper a little (cheese is also salty).
2. Cut the tomato into cubes and grate the cheese.
3. Grease a frying pan (24 cm in diameter) with butter. Pour the egg mixture, close the lid. Fire on medium.
4. When the omelet is fried from below, turn it with a wide spatula. Lay out on him tomatoes, sprinkle cheese and Basil.
Cover and fry for a couple of minutes. Roll the omelet in half, fry until Golden brown and serve, sprinkled with Parmesan.