Follow these steps carefully to ensure your fish is perfectly moist and your vegetables are cooked to perfection. The beauty of this recipe is its simplicity and the “one-pan” nature of the baking process.

Step 1: Preheat and Prepare Your Pan
Begin by preheating your oven to 400°F (200°C). This is a crucial step for ensuring the fish cooks quickly and evenly, which is the secret to keeping it moist. A hot oven sears the outside slightly, locking in the juices. Line a large, rimmed baking sheet with parchment paper. This is a game-changing tip that not only prevents the fish and vegetables from sticking but also makes cleanup incredibly easy.

Step 2: Prepare the Zesty Topping
In a small bowl, combine the 3 tablespoons of extra virgin olive oil, the zest and juice of one large lemon, the 4 cloves of minced garlic, the chopped fresh parsley, chopped fresh dill, paprika, 1 teaspoon of sea salt, and 1/2 teaspoon of black pepper. Whisk everything together until it’s well emulsified. This mixture is the heart of the recipe; it should be fragrant and have the consistency of a thin paste. Set it aside for a few minutes to allow the flavors to meld.

Step 3: Prepare the Fish
Take your fish fillets and pat them thoroughly dry on all sides with a paper towel. Removing excess moisture is essential for getting a good texture and allowing the zesty topping to adhere properly. If the fish is wet, it will steam rather than bake, and the topping can slide off. Arrange the dried fillets in a single layer on one side of your prepared baking sheet, leaving space between each piece.

Step 4: Season the Fish
Spoon the zesty topping evenly over the top of each fish fillet. Use the back of the spoon to gently spread the mixture, ensuring the entire surface of each fillet is coated. This flavor-packed crust will protect the fish from the direct heat of the oven, further helping it to stay tender and juicy.

Step 5: Prepare the Vegetables
On the other half of the baking sheet, spread out your broccoli florets, carrot slices, and red bell pepper slices in a single, even layer. Pour the 1/4 cup of water or vegetable broth directly onto the vegetables on the pan. The hot oven will quickly turn this liquid to steam, which will gently cook the vegetables, preserving their color, nutrients, and texture.

Step 6: Bake to Perfection
Place the baking sheet in the preheated 400°F (200°C) oven. Bake for 12-18 minutes. The exact cooking time will depend on the thickness of your fish fillets. The fish is done when it is opaque all the way through and flakes easily when gently prodded with a fork. The vegetables should be tender-crisp; you don’t want them to be mushy.

Step 7: Final Touches
Carefully remove the baking sheet from the oven. Drizzle the steamed vegetables with 1 tablespoon of olive oil and toss them gently with a sprinkle of salt and pepper. This adds a final layer of flavor and a beautiful sheen. Let the fish rest on the pan for a minute or two before serving. This allows the juices to redistribute throughout the fillet, ensuring every bite is moist.