Cheesy Chicken and Mushroom Bake

Ingredients

• 2 tbsp vegetable oil
• 1 tbsp chopped fresh parsley
• 1/2 tsp black pepper
• 1/2 cup sherry wine
• 4 boneless, skinless chicken breasts (about 1 lb)
• 1/2 tsp salt
• 8 oz white button mushrooms, sliced
• 18 oz canned cream of mushroom soup
• 1 tbsp unsalted butter
• 1/3 cup all-purpose flour
• 6 slices Swiss cheese