Reuben Casserole

Name: Reuben Casserole
Ingredients: 1/2 c. unsalted butter, melted, divided, plus more for pan; 1 10 1/4-oz. can cream of chicken soup; 1/2 c. milk; 2 c. shredded Swiss cheese, divided; 1/2 c. Thousand Island dressing, plus more for drizzling; 2 tsp. caraway seeds; 2 tsp. kosher salt; 1 tsp. black pepper; 30 oz. bag frozen shredded hash browns, thawed; 1 lb. corned beef, cut into 1/2-inch pieces; 1 lb. sauerkraut, drained well; 6 slices (about 6-0z.) marbled rye sandwich bread, cut into 1-inch pieces; Chopped parsley, for garnish