Preheat oven at 180°C.
Mix the milk and contents of KNORR Chicken a'la King Dry Cook-in-Sauce sachet until smooth and heat in the microwave or stovetop until thickened.
Add 100 ml cheese to the sauce and stir until mixed through.
Place the haddock in a greased ovenproof dish and spread the fish fillets with cooked spinach.
Sprinkle with parsley, pour the creamy sauce over the fish and top with the remaining cheese.
Bake in the oven for 30-40 min and serve immediately with a jacket potato and a knob of Stork margarine seasoned with black pepper.