Ingredients
- 4 large eggs
- 4 large egg whites
- 2 tablespoons water
- 2 tablespoons olive oil
- 1 small red onion, cut in half, then thinly sliced into half-moons
- 2 cups chopped cooked broccoli
- 1/4 teaspoon salt
- Freshly ground pepper to taste
- 2 ounces extra-sharp cheddar cheese, shredded (1/2 cup)
Directions
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Preheat the broiler.
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Combine the whole eggs, egg whites, and water in a medium bowl and whisk well.
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In a medium ovenproof nonstick skillet, heat the oil over medium heat. Add the onion and cook, stirring, until it begins to soften, about 3 minutes. Add the broccoli and cook for another 2 minutes. Season with salt and pepper. Pour the egg mixture over the vegetables in the skillet, covering them evenly. Reduce the heat to medium-low, cover, and let cook until the egg mixture has set around th edges of the pan but is still somewhat liquid in the middle, about 8 minutes. Sprinkle with the cheese.
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Place the skillet under the broiler about 2 inches from the heat until the surface is set and golden brown, 1 to 2 minutes. Be careful not to overcook or the egg mixture will become tough.
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Cut the frittata into 8 wedges and serve.