Name: Olive-Citrus Slow Roasted Salmon Recipe
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Cuisine: Mediterranean
Ingredients: 2 navel oranges, divided; 1 lemon; 1/4 cup + 2 Tbsp. extra-virgin olive oil, divided; 1 (1 1/2-lb.) skin-on salmon fillet; 1 tsp. kosher salt, divided; 1/4 tsp. cracked black pepper; 1/2 cup coarsely chopped Castelvetrano olives; 2 Tbsp. minced shallots or red onion; 1/4 cup finely chopped fresh parsley; 3 Tbsp. finely chopped fresh dill; 1 tsp. Aleppo pepper flakes (or 1/4-1/2 tsp. crushed red pepper flakes)

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If you’re on the lookout for a dish that elevates salmon to an unforgettable centerpiece, the Olive-Citrus Slow Roasted Salmon Recipe is your new go-to. This recipe effortlessly brings together the bright, zesty notes of citrus with the luscious, buttery texture of slow-roasted salmon, all kissed by the savory, briny punch of Castelvetrano olives. The result is an elegant yet approachable dish that feels like a celebration on your plate. Whether you’re cooking for a special occasion or simply craving something fresh and flavorful, this salmon recipe will quickly become a beloved staple you’ll want to share with friends and family.

Ingredients You'll Need

The image shows two parts: on the left, many thin, round slices of lemon and orange are spread over a wooden surface, with the yellow of lemon and bright orange colors mixed closely together. On the right, a white baking dish has a base layer of alternating slices of lemon and orange arranged flat in a single layer, creating a circle. On top of this fruit layer sits a thick, rectangular piece of raw salmon, lightly sprinkled with black pepper, showing a smooth texture with pink and orange hues. The background is a white marbled surface. Photo taken with an iphone --ar 4:5 --v 7

With just a handful of thoughtfully selected ingredients, this Olive-Citrus Slow Roasted Salmon Recipe proves that simplicity is key. Each component plays a crucial role — from the bright citrus to the rich olive oil and aromatic fresh herbs — crafting a harmony of flavors that is both vibrant and comforting.

2 navel oranges, divided: Using both zest and slices adds layers of citrus aroma and a burst of natural sweetness.
1 lemon: Provides bright acidity that balances the richness of the salmon perfectly.
1 (1 ½-lb.) skin-on salmon fillet: The star of the show, offering tender, flaky flesh and crispy skin when roasted low and slow.
¼ cup + 2 Tbsp. extra-virgin olive oil, divided: Brings depth and helps keep the salmon moist during the slow roast.
1 tsp. kosher salt, divided: Enhances all the natural flavors while seasoning the fish just right.
¼ tsp. cracked black pepper: Adds subtle heat without overpowering the dish.
½ cup coarsely chopped Castelvetrano olives: These olives have a mild, buttery flavor that complements the citrus and fish beautifully.
2 Tbsp. minced shallots or red onion: Offers a sweet and pungent crunch that cuts through the richness.
¼ cup finely chopped fresh parsley: Contributes a fresh, herbaceous brightness for balance.
3 Tbsp. finely chopped fresh dill: The perfect herb choice to enhance seafood with its delicate, anise-like flavor.
1 tsp. Aleppo pepper flakes (or ¼-½ tsp. crushed red pepper flakes): Adds a hint of warmth and complexity to finish off the flavor profile.

How to Make Olive-Citrus Slow Roasted Salmon Recipe

Step 1: Prep Your Citrus and Herbs

Begin by zesting one orange and the lemon, then slice the remaining orange into thin rounds. This layering of citrus zest and slices infuses the salmon with fresh, aromatic flavors throughout roasting. Next, combine the chopped olives, minced shallots, parsley, dill, Aleppo pepper flakes, and a pinch of salt in a bowl. This vibrant mixture elevates the dish with contrasting textures and herbaceous notes.

Step 2: Season Your Salmon

Place the skin-on salmon fillet skin-side down on a baking dish. Drizzle ¼ cup of olive oil over the top, then sprinkle half the salt, the cracked black pepper, and the citrus zest evenly across the surface. The slow roasting will allow these flavors to seep into the flesh gently, making each bite a perfect blend of savory and zesty.

Step 3: Assemble Citrus and Olive Topping

Arrange the orange slices over the salmon, then sprinkle the olive-herb mixture evenly on top. Finish with an additional drizzle of olive oil to keep everything luscious during cooking. This combination cooks into a fragrant, flavorful crust that keeps the salmon moist and adds beautiful color.

Step 4: Slow Roast to Perfection

Preheat your oven to a gentle 275°F (135°C). Slow roast the salmon, uncovered, for about 25–30 minutes or until it flakes easily with a fork but still feels buttery inside. Slow roasting allows the salmon to cook evenly without drying out, concentrating the flavors and giving the dish its signature melt-in-your-mouth texture.

How to Serve Olive-Citrus Slow Roasted Salmon Recipe

Two side-by-side images show a white bowl on a white marbled surface with a spoon inside each bowl. The bowl on the left has about three layers: the bottom is a light brown oily sauce, the middle is a mix of small green bean pieces and light beige chopped onions, and red chili flakes scattered on top. The bowl on the right shows three layers too: the bottom is the same light brown oily sauce, the middle is chopped green beans, and the top layer is fresh green herbs mixed evenly, with red chili flakes visible. Photo taken with an iphone --ar 4:5 --v 7

Garnishes

The beauty of this Olive-Citrus Slow Roasted Salmon Recipe shines through in its garnishes. Fresh lemon wedges offer an extra burst of citrus to brighten each serving. A sprinkle of chopped fresh parsley or dill adds a vibrant, herbaceous finish that complements the tender fish and olive topping perfectly.

Side Dishes

Serve alongside light, fresh sides such as a crisp green salad dressed in a simple vinaigrette or a bowl of fluffy couscous tossed with fresh herbs and toasted pine nuts. Roasted baby potatoes or steamed asparagus also work wonderfully, giving lovely textural contrast without competing with the star salmon.

Creative Ways to Present

For a stunning presentation, plate the salmon on a large platter surrounded by additional citrus slices and fresh herbs. Alternatively, serve individual portions over a bed of creamy mashed cauliflower or alongside a refreshing quinoa salad. This recipe’s elegant look and inviting aroma make it perfect for entertaining or a special family dinner.

Make Ahead and Storage

Storing Leftovers

If you happen to have leftovers — which might be rare, given how delicious this salmon is — store them in an airtight container in the refrigerator. The flavors will deepen overnight, and the salmon will keep well for up to 2 days without losing its wonderful texture.

Freezing

While fresh is best for the Olive-Citrus Slow Roasted Salmon Recipe, you can freeze cooked leftovers by wrapping them tightly in plastic wrap and foil or placing them in a freezer-safe bag. Consume within 1 month to maintain optimal flavor and quality. Thaw overnight in the refrigerator before reheating gently.

Reheating

To reheat, warm the salmon gently in a low oven (around 275°F/135°C) or use a microwave on a low power setting to avoid drying it out. Adding a small splash of olive oil or lemon juice before reheating can help revitalize the moist, vibrant qualities of the dish.

FAQs

Can I use a different type of olives for this recipe?

Absolutely! While Castelvetrano olives are prized for their mild, buttery flavor, you can substitute with green olives or even Kalamata olives if you prefer a more robust taste. Just be mindful of saltiness and adjust seasoning accordingly.

Is it necessary to slow roast salmon for this recipe?

Slow roasting at a low temperature ensures the salmon cooks evenly and stays incredibly moist and tender. You can cook it at a higher temperature for less time, but you might sacrifice some of the delicate texture and flavor development unique to slow roasting.

Can I prepare the toppings ahead of time?

Yes! Mixing the olive, herb, and shallot topping a few hours in advance helps the flavors meld even more. Just keep it covered in the refrigerator and bring to room temperature before spreading on the salmon.

What can I substitute if I don’t have Aleppo pepper flakes?

If Aleppo pepper flakes aren’t available, crushed red pepper flakes make a great substitute. Use less to avoid overpowering the gentle citrus and olive flavors, starting with about ¼ teaspoon and adjusting to your taste.

How do I know when the salmon is perfectly cooked?

The salmon should flake easily with a fork but remain moist and slightly translucent in the center. Overcooking can cause it to dry out, so checking at the 25-minute mark and gently testing is the best approach.

Final Thoughts

There’s something truly magical about the way the Olive-Citrus Slow Roasted Salmon Recipe brings together brightness, savory depth, and tender texture in one gorgeous dish. It’s straightforward enough for weeknight dinners yet impressive enough for your next dinner party. I can’t wait for you to experience the fresh, vibrant flavors and the happy smiles that come with every bite. Trust me, this recipe will quickly earn a special place in your kitchen repertoire!

Ingredients You'll Need