01 -
Set the oven to 177°C (350°F). Lightly grease a 9x13-inch (23x33 cm) baking dish or line it with parchment paper.
02 -
Pat chicken dry. Season both sides generously with kosher salt and freshly ground black pepper. Lightly coat each piece with flour, shaking off excess.
03 -
Heat olive oil in a large skillet over medium heat. Sear chicken pieces about 2 minutes per side until golden but not fully cooked. Transfer to a plate.
04 -
Melt butter in the same skillet over medium-high heat. Add sliced mushrooms, season with salt and pepper, and sauté until softened and golden, about 5 minutes.
05 -
Pour sherry wine into the skillet, scraping up browned bits with a spatula. Simmer for 1 to 2 minutes to reduce slightly.
06 -
Stir cream of mushroom soup into the mushroom and sherry mixture. Mix thoroughly until smooth and heated through.
07 -
Arrange browned chicken evenly in the baking dish. Pour the mushroom sauce over the chicken. Top each piece with one slice of Swiss or Muenster cheese.
08 -
Cover the baking dish with foil and bake for 30 minutes at 177°C (350°F).
09 -
Remove foil and broil for 1 to 2 minutes until the cheese is bubbly and lightly browned.
10 -
Let the dish rest for 5 minutes before serving. Garnish with freshly chopped parsley if desired.