Wild-Mushroom Frittata

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   Heat oven to 350u00b0F. Heat oil on high in a 6-inch cast-iron skillet for 2 minutes. Add butter; when it foams, add mushrooms. Season with salt and pepper and saute 5 minutes. Reduce heat to low and add onions and thyme; saute 2 or 3 minutes. Stir in egg whites with a heatproof rubber spatula until eggs start to set. Transfer skillet to oven and bake 5 minutes, until golden. Sprinkle with remaining herbs and lemon juice. Cut into wedges and serve.

* Per serving · 4 servings · Values may vary.

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