INGREDIENTS:

• 16 ounces sliced mushrooms
• 2 tablespoons butter
• 1 egg yolk
• 1/3 cup sour cream
• 1/4 teaspoon salt
• 1/8 teaspoon pepper
• 3 tablespoons fresh chopped parsley
• 1/3 cup shredded Swiss or Monterey Jack cheese

PREPARATION:
Heat butter in a skillet over medium-low heat. When butter is foamy, add mushrooms and cook until lightly browned, stirring constantly.
Whisk together the sour cream, egg yolk, and salt and pepper; stir into the mushrooms. Heat through, stirring. Spoon mushroom mixture into a shallow baking dish; sprinkle with the chopped parsley and shredded cheese. Bake at 425° for 10 minutes, until cheese is melted.
Serves 4.