Southern Living's Chicken Breasts Lombardy Recipe

Cook mushrooms in 2 T. butter slowly and set aside. Place chicken between 2 sheets of heavy-duty plastic wrap; flatten to 1/8 inch thickness,using a meat mallet. Dredge each chicken in flour and brown each side over medium heat until golden, about 3-4 minutes in butter. Place chicken in lightly greased 9x13-inch baking dish, overlapping edges. Reserve pan drippings in skillet. Sprinkle mushrooms over chicken. Add cooking wine and broth to pan drippings. Bring to a boil and simmer, uncovered, 8 minutes. Stir in salt and pepper. Pour sauce evenly over chicken. Combine cheeses and green onions; sprinkle over chicken. Bake, uncovered, at 375 for 20 minutes.