Ingredients:

* nonstick cooking spray
* 2 eggs
* 2 tbsp. skim milk
* 1 tbsp. onion, chopped
* 2 tbsp. red tomato, diced
* 1 tbsp. cheddar cheese

Directions:

1. Spray a skillet with nonstick cooking spray.
2. Heat the skillet on low heat.
3. Whisk eggs and milk until they start to foam, approximately 3 minutes.
4. Pour the beaten eggs into the pan and cover the pan.
5. Cook over medium-low heat for about 4 minutes, until bottom is golden brown and top is set.
6. Sprinkle cheese, onions, and tomato over the top.
7. Fold omelet in half with a spatula.
8. Cook for about 1 more minute.
9. Remove from skillet and serve.