Remove skin and dark streak from fillets; place fillets in shallow baking dish. Squeeze a liberal amount of lemon juice over fish; sprinkle with wine and Worcestershire sauce. add salt, pepper, and milk. Make a cream sauce with the butter, flour, salt, pepper and milk. Sauce should be smooth and thick. Place slices of Swiss cheese over fish; cover with white sauce, then with shredded mozzarella. sprinkle with paprika. Bake at 350 degrees for 40 minutes. Sprinkle green onions over all for last 5 minutes of baking.