A delightful and easy-to-make dish featuring tender halibut steaks baked over a bed of spinach and topped with a rich, creamy cheese sauce.
Preheat your oven to 350°F (175°C).
Preheating ensures even cooking and the right texture for your dish.
Butter a 13 x 9-inch baking dish to prevent sticking.
Use a paper towel to evenly spread the butter across the dish.
In a saucepan over medium-low heat, combine the half-and-half cream, cheddar cheese, and Parmesan cheese. Stir until melted and smooth.
Stir constantly to prevent the cheese from sticking to the pan.
Mix the flour and water together to form a slurry, then add it to the cheese mixture, stirring until thickened.
Ensure the slurry is smooth to avoid lumps in the sauce.
Spread the spinach evenly across the bottom of the prepared baking dish.
Press the spinach gently to create an even layer.
Brush the halibut steaks with melted butter and season with seasoning salt and black pepper on both sides.
Ensure the seasoning is evenly distributed for consistent flavor.
Place the halibut steaks on top of the spinach, then pour the cheese sauce over the fish.
Pour the sauce evenly to cover all the fish for uniform baking.
Bake in the preheated oven for 35-40 minutes, or until the halibut flakes easily with a fork.
Check the fish at 35 minutes to avoid overcooking.
Serve the baked halibut and spinach onto plates, ensuring each portion has a generous amount of sauce.
Garnish with a sprinkle of fresh parsley for added color and flavor.