Recipe courtesy of Dave Lieberman
Yield: 8 servings

3 tablespoons vegetable oil
1 (10-ounce) package mushrooms, chopped
Salt and freshly ground black pepper
1 medium onion, chopped
8 eggs
4 egg whites
1 cup grated sharp Cheddar
Arugula Salad, recipe follows

Preheat the broiler and set the rack about 4 to 5 inches from the heat source. Heat oil in large ovenproof nonstick skillet over medium-high heat. Saute mushrooms until browned, seasoning with salt and pepper. Add onion and saute until tender.

Whisk eggs, egg whites, salt, and pepper in a medium bowl. Pour over vegetables in skillet and mix gently. Reduce heat to medium-low, cover skillet, and cook until eggs are set around edges, about 4 to 5 minutes. Sprinkle with cheese and then place skillet under broiler and cook until cheese is melted and just browned, about 2 minutes. Let frittata stand 1 minute before cutting into 8 wedges. Serve with salad on the side.

Arugula Salad:
1 large bunch arugula leaves, washed and dried
1/4 cup olive oil
1 lemon, juiced
10 grinds black pepper
Couple pinches salt
Combine all ingredients in a large bowl. Toss to coat leaves with dressing and serve with the frittata.