Oven-Roasted Whole Fish with Lemon & Herbs

Prep Time	15 minutes
Cook Time	20 minutes
Total Time	35 minutes
Skill Level / Intensity	Easy / Beginner-Friendly
Oven Heat Intensity	High Heat ( $425^\circ\text{F}$ / $220^\circ\text{C}$ )
Yield	2 whole fish (Serves 2 to 4)

Ingredients You’ll Need

For the Whole Fish

Whole Fish: 2 whole sea bass, red snapper, or trout (about 1.25 to 1.5 lbs / 600g each), scaled and gutted by your fishmonger.
Extra Virgin Olive Oil: 3 tablespoons. High-quality oil helps crisp the skin and carries heat evenly.
Lemons: 2 fresh lemons (1 thinly sliced into rounds, 1 cut into wedges for serving).
Fresh Herbs: 6 sprigs fresh thyme, 6 sprigs fresh rosemary, and 1 small bunch fresh flat-leaf parsley.
Garlic: 6 cloves (3 sliced thin for stuffing, 3 smashed for the pan).
Kosher Salt: 1.5 teaspoons.
Freshly Cracked Black Pepper: 3/4 teaspoon.

For the Garlic-Lemon Finishing Oil

Extra Virgin Olive Oil: 2 tablespoons.
Lemon Juice: 1 tablespoon, freshly squeezed.
Fresh Parsley: 2 tablespoons, finely chopped.
Flaky Sea Salt: A generous pinch (like Maldon) to finish.

Step-by-Step Cooking Guide

1.Prep the Oven and Fish:Duration: 5 mins | Heat Intensity: High Heat Preheat.

Preheat your oven to $425^\circ\text{F}$ ( $220^\circ\text{C}$ ). Line a large rimmed baking sheet with parchment paper or foil. Pat the whole fish thoroughly dry with paper towels—removing surface moisture is the secret to getting crispy skin rather than steamed skin.

2.Score and Season:Duration: 5 mins | Heat Intensity: None.

Using a sharp chef’s knife, cut 3 to 4 shallow diagonal slits into the flesh on both sides of each fish, about 1/2-inch deep. Drizzle the outside and the internal cavity with extra virgin olive oil. Generously season both sides and inside the cavity with kosher salt and black pepper, ensuring seasonings reach inside the slashes.

3.Stuff the Cavities:Duration: 5 mins | Heat Intensity: None.

Stuff each fish cavity with thin lemon slices, sprigs of fresh thyme, rosemary, parsley, and sliced garlic. Arrange the stuffed fish flat on your prepared baking sheet and scatter smashed garlic cloves around the pan.

4.Roast to Golden Perfection:Duration: 18-22 mins | Heat Intensity: High Roast (425^\circ\text{F}).

Transfer the baking sheet to the middle rack of the oven. Roast for 18 to 22 minutes (depending on thickness). The fish is done when the skin is blistered and golden, and the flesh near the spine flakes easily with a fork ( $145^\circ\text{F}$ or $63^\circ\text{C}$ internal temperature).

5.Dress and Serve:Duration: 2 mins | Heat Intensity: None.

Whisk together the finishing olive oil, fresh lemon juice, and chopped parsley. Drizzle over the hot roasted fish right out of the oven. Sprinkle with flaky sea salt and serve immediately with fresh lemon wedges.

Pro Tips for Selecting and Cooking Whole Fish

Buying Fresh: Look for bright, clear, non-cloudy eyes, bright red gills, and firm flesh that bounces back when gently pressed. The fish should smell like clean ocean air, not “fishy.”
Ask Your Fishmonger: Ask the seafood counter to scale, gut, and snip the sharp fins off the fish for you. This saves you 90% of the prep work at home!
Carving Made Simple: To serve, run a butter knife along the backbone from head to tail. Gently lift the top fillet off the bones onto a plate. Grasp the tail bone and lift the entire spine away in one piece to expose the bottom fillet.

Storage, Reheating & Shelf Life

Refrigeration: Store leftover cooked fish in an airtight container in the refrigerator for up to 2 days.
Reheating: Reheat gently in a preheated oven at $350^\circ\text{F}$ ( $175^\circ\text{C}$ ) for 8–10 minutes until warmed through. Avoid the microwave, as high intensity renders seafood rubbery and pungent.

Detailed Nutritional Breakdown

Calculated per serving (based on half a whole fish, yields 4 portions total).

Nutrient	Amount Per Serving	% Daily Value*
Calories	280 kcal	—
Total Fat	16 g	21%
Saturated Fat	2.5 g	13%
Trans Fat	0 g	—
Omega-3 Fatty Acids	1,250 mg	100%+
Cholesterol	65 mg	22%
Sodium	480 mg	21%
Total Carbohydrate	3 g	1%
Dietary Fiber	1 g	4%
Total Sugars	0.5 g	—
Protein	31 g	62%
Vitamin D	10 mcg	50%
Calcium	70 mg	5%
Iron	1.5 mg	8%
Potassium	520 mg	11%