12 oz. dried fettuccine
2 tbsp. chopped fresh Italian parsley for garnish
2 tbsp. Dijon mustard
8 oz. mascarpone cheese
1 cup dry Marsala wine
2 cloves garlic minced
1 pound cremini mushrooms sliced
1 onion chopped
2 tbsp. butter
2 tbsp. olive oil
Salt and freshly ground black pepper
1 1/2 pounds boneless skinless chicken breasts cut into strips