1 pound ziti
2 1/2 cups cooked, shredded chicken
2 cups shredded mozzarella cheese
1/2 cup parmesan cheese, divided
1/2 cup heavy cream
1 3/4 cups chicken stock
1/2 cup marsala wine
3 tbsp. flour
1 tsp. fresh thyme
Fresh black pepper to taste
1 tsp. kosher salt
2 tsp. chopped garlic
1/2 cup onion, diced
10 oz. mushrooms, cleaned, stems removed and sliced
1 tbsp. olive oil
2 tbsp. butter