Step-by-Step Preparation

First Step: PREPARE THE FISH

1. Prepare the Snapper: Begin by rinsing the whole snapper under cold water. Pat it dry with paper towels to ensure there is no excess moisture. Using a sharp knife, make a few diagonal slashes on each side of the fish to allow the seasonings to penetrate during baking.
2. Season the Fish: Rub the fish inside and out with olive oil, making sure it’s evenly coated. Sprinkle salt, pepper, paprika, and cumin (if using) over the fish, including inside the cavity. The slashes in the fish will help the seasoning infuse better.
3. Stuff the Fish: Slice the lemon into thin rounds and stuff a few slices into the cavity of the fish. Add the minced garlic and fresh thyme, as well as a sprig of dill (optional). These aromatic ingredients will help flavor the fish as it bakes.
4. Prepare the Baking Dish: Place the seasoned fish on a baking sheet or in a large baking dish. If you want to make it extra flavorful, drizzle a bit of olive oil over the fish.

Second Step: PREPARE THE ROASTED VEGETABLES (Optional)

1. Prepare the Vegetables: While the fish is being seasoned, you can prepare the vegetables. Slice the bell pepper, zucchini, and red onion into thin rounds or wedges. Toss them with olive oil, salt, pepper, and oregano.
2. Roast the Vegetables: Arrange the seasoned vegetables around the snapper on the baking sheet or in a separate roasting dish. These will roast alongside the fish, absorbing its flavors and creating a delicious accompaniment.

Third Step: BAKE THE SNAPPER

1. Preheat the Oven: Preheat your oven to 400°F (200°C). This high temperature will help the fish cook quickly while maintaining its moisture and tenderness.
2. Bake the Snapper: Place the snapper in the preheated oven. Bake for 30-35 minutes, depending on the size of the fish. The general rule of thumb is to cook the fish for about 10 minutes per inch of thickness. The fish is done when the flesh is opaque and flakes easily with a fork.
3. Check for Doneness: To ensure that the snapper is perfectly cooked, insert a fork into the thickest part of the fish and gently pull it apart. If the flesh flakes easily, it’s ready to be served.

Final Step: GARNISH AND SERVE

1. Garnish the Fish: Once the snapper is done, remove it from the oven and let it rest for a few minutes. Garnish with fresh parsley, a few additional lemon slices, and any leftover herbs you may have, like dill or thyme.
2. Serve: Serve the oven-baked snapper whole on a platter or plate it individually with a side of the roasted vegetables. You can also add a drizzle of extra virgin olive oil or a squeeze of fresh lemon juice for an added burst of flavor.