Country Omelet

Directions

1. 1
   Heat the oil and butter in a nonstick skillet until hot but not smoking.
2. 2
   Add the onions and potatoes and cook, covered, for about 10 minutes, stirring the mixture every 3 to 4 minutes.
3. 3
   Arrange the tomato slices so they cover most of the surface of the potato-and-onion mixture, cover, and cook for 1 minute.
4. 4
   Meanwhile, break the eggs into a bowl, add the chives, salt and pepper, and mix together with a fork.
5. 5
   Add the egg mixture to the skillet and stir gently with the tines of the fork for about 1 minute to allow the eggs to flow between the potatoes.
6. 6
   Then place the skillet under a hot broiler, 3 or 4 inches from the heat, and cook for about 3 minutes, until eggs are set.
7. 7
   Invert onto a platter, cut into wedges and serve.