Scrumptious Scramble

This is from the book "The Food You Crave" by Ellie Krieger. I think it would be good with a little Parmesan cheese to top it off.

• Ready In: 10 mins
• Serves: 4

Ingredients

• 1  teaspoon olive oil
• 1⁄2 cup red onion, diced
• 1  medium  ripe tomatoes, cored seeded and diced (about 1 cup)
• 4  large eggs
• 4  large  egg whites
• 2  tablespoons water (optional)
• 1  tablespoon fresh dill, chopped (or 1 t dried)
•  salt & freshly ground black pepper

Directions

1. In a medium nonstick skillet, heat the oil over medium heat. Add the onion and cook for 2 minutes, stirring once or twice. Add the tomato and cook for 1 minute more. Transfer the onion-tomato mixture to a bowl and set aside.
2. In a medium bowl, lightly beat together the whole eggs, egg whites and water, if using. Pour the egg mixture into the skillet and cook over medium-low heat stirring frequently, until the eggs are almost set.
3. Drain any excess water from the tomato mixture and stir the mixture gently into the eggs. Toss in the dill. Season with salt and pepper, and serve.