2 pkg. frozen leaf spinach
1 1/2 lb. frozen flounder fillets, thawed
1/2 c. water
2 tbsp. lemon juice
1 tsp. salt
1/2 tsp. pepper
1/4 c. milk
1/4 c. grated Parmesan cheese
1 1/2 tbsp. flour

Cook spinach; drain well. Carefully separate flounder; fold neatly into little bundles. Arrange in shallow 6 cup baking dish. Pour over water and lemon juice, sprinkle with salt and pepper. Bake at 350 degrees for 15 minutes or until fish flakes easily with fork. Remove from oven. Drain cooking liquid into measure cup (about 3/4 cup). Heat liquid to boiling in saucepan. Combine milk and flour; mix well. Stir into bubbling liquid. Cook over moderate heat stirring constantly until the sauce thickens. Spread drained spinach around fish; pour sauce over. Top with grated cheese. Bake at 450 degrees for 5 minutes or until sauce bubbles. Can substitute perch and cheddar cheese.