This Spanish-inspired baked salmon pairs tender fillets with a gently simmered tomato, pepper, olive, and smoked-paprika sauce. Spanish cooking has many regional and family variations, and there is no single canonical salmon bake; this version takes cues from sofrito-style cooking and serves the fish with bread, potatoes, or rice.
Ingredients
- 4 skin-on salmon fillets, about 6 oz (170 g) each
- 1 medium yellow onion, finely diced, about 1 cup (150 g)
- 1 medium red bell pepper, diced, about 1 cup (150 g)
- 3 garlic cloves, finely chopped, about 1 tbsp (9 g)
- 2 tbsp extra-virgin olive oil (30 ml), divided
- 1 tsp sweet or smoked Spanish paprika, also called pimentón (2 g)
- 1 pinch saffron threads, about 0.05 g; or use ¼ tsp ground turmeric (about 0.7 g) for color, though turmeric lacks saffron’s delicate aroma
- ⅓ cup (80 ml) warm low-sodium vegetable or fish broth
- 1 can diced tomatoes, 14.5 oz (411 g), with their juices
- ⅓ cup pitted green olives, roughly chopped, about 50 g
- 1 tbsp capers, drained, about 9 g
- ¾ tsp fine salt (about 4 g), plus more to taste
- ¼ tsp freshly ground black pepper (about 0.5 g)
- 1 tbsp fresh lemon juice (15 ml), plus lemon wedges for serving
- 2 tbsp chopped flat-leaf parsley (about 8 g)
Instructions
- Heat the oven and prepare the saffron. Set a rack in the middle of the oven and heat it to 400°F (200°C). Stir the saffron threads into the warm broth and leave them to steep for 5 minutes while you chop the vegetables. This draws out their color and aroma; if using turmeric instead, stir it into the broth just before adding it to the pan.
- Season the salmon. Pat the fillets dry with paper towels so the surface is not wet. Check carefully for pin bones and remove any you find with clean tweezers. Sprinkle the fish on both sides with about half the salt and the black pepper. Set it aside while you start the sauce; it does not need a long marinade.
- Soften the vegetables. Heat 1½ tablespoons of the olive oil in a large ovenproof skillet over medium heat. Add the onion and bell pepper and cook for 5 to 6 minutes, stirring now and then, until softened but not browned. Add the garlic and paprika and stir for 30 seconds, just until fragrant. Paprika can turn bitter if it scorches, so keep it moving and lower the heat if necessary.
- Simmer the tomato sauce. Pour in the saffron broth and tomatoes, then add the olives, capers, and remaining salt. Bring the mixture to a gentle simmer and cook uncovered for about 4 minutes, stirring occasionally. The sauce should still be loose enough to bubble around the fish; it will thicken slightly in the oven. Taste it before adding more salt because olives and capers are already salty.
- Add the salmon and bake. Stir the lemon juice into the sauce and spread it evenly in the skillet. Nestle the salmon fillets into the sauce, skin-side down if they have skin, and drizzle the remaining ½ tablespoon olive oil over the tops. Transfer the skillet to the oven and bake for 12 to 15 minutes, depending on thickness. The USDA FSIS safe minimum internal temperature for fish is 145°F (63°C), checked with a food thermometer at the thickest part of a fillet. If a piece has not reached that temperature, return the pan to the oven and check again after a short interval.
- Rest and finish. Remove the skillet from the oven and let the salmon rest in the sauce for 3 minutes. Scatter parsley over the top and serve with lemon wedges. The fish will be moist and flaky, while the sauce should be spoonable rather than watery. If the fillets vary in thickness, remove each one as it reaches 145°F (63°C) and keep the others cooking until they do.
Tips
- Choose fillets of similar thickness. Pieces around 1 to 1½ inches (2.5 to 4 cm) thick are easier to cook evenly. Thin tails may finish several minutes before thick center-cut portions, so check each fillet separately rather than relying only on the clock.
- Use a thermometer, not color alone. Salmon can look opaque before it has reached the safe minimum temperature, and the exact cooking time varies with the fish and pan. Insert the thermometer sideways into the thickest area without touching the skillet.
- Adjust salt after tasting the sauce. Olives and capers bring plenty of seasoning, and broth can vary in saltiness. Start with the amount listed, taste the tomato mixture, then add a small pinch only if it needs it.
- Keep the sauce at a gentle simmer. A hard boil can reduce the tomatoes too quickly and cause splattering. If you do not have an ovenproof skillet, simmer the sauce in a regular pan and transfer it to a shallow baking dish before adding the salmon.
Serving Suggestions
Serve each fillet with a generous spoonful of tomato-pepper sauce so the olives and capers are distributed around the plate. Crusty bread is useful for catching the sauce, while boiled or roasted potatoes make the meal heartier. Plain rice, buttered noodles, or couscous also work when you want a simple base that will not compete with the smoky paprika and briny garnish.
For a lighter plate, add a green salad dressed with olive oil and sherry vinegar, or serve steamed green beans alongside. A dish of roasted zucchini or asparagus is another easy match. Put lemon wedges on the table so diners can brighten their own portion, and offer extra parsley for a fresh finish. Because the sauce already contains vegetables and salty accents, keep side dishes simply seasoned.
Variations
Make it with piquillo peppers. Replace the fresh red bell pepper with ½ cup (about 75 g) drained, sliced jarred piquillo peppers. Add them with the tomatoes rather than sautéing them for several minutes. Piquillos are sweet and gently smoky, but they soften more quickly and give the sauce a slightly deeper roasted-pepper flavor. Refrigerate any unused peppers after opening.
Change the herbs or olives. A little chopped fresh thyme can simmer with the tomatoes, while chopped cilantro gives the finished dish a brighter, less classic parsley-like note. Use black olives if that is what you have; they tend to be milder and less briny than many green olives, so taste the sauce before seasoning. Keep the capers if possible, since their sharp, salty flavor balances the tomatoes.
Use another fish. Thick cod or haddock portions can stand in for salmon. Their texture is leaner and more delicate, so handle them gently and begin checking early. Cook every fish portion to 145°F (63°C) at its thickest point. For a meatless variation, spoon the sauce over drained, rinsed chickpeas and simmer until hot; the fish temperature instruction does not apply to that version.
Make it more or less smoky. Sweet Spanish paprika gives a gentle pepper flavor, while smoked pimentón lends a more pronounced campfire note. If you only have hot paprika, use about ½ teaspoon (1 g) and keep the rest sweet or smoked; a full teaspoon of hot paprika can overwhelm the sauce. Saffron is traditional in many Spanish dishes but is not essential here, so turmeric is a practical color substitute when saffron is unavailable.
Storage and Reheating
Refrigerate cooked salmon within 2 hours of cooking, using a shallow airtight container so it cools promptly. Store the fish and sauce together, and use leftovers within 3 to 4 days. For the best texture, avoid leaving the salmon in the hot skillet after serving, since residual heat can continue cooking it. If you expect leftovers, you can also keep the sauce separate from the fish once both have cooled.
To reheat, place a portion with a spoonful of sauce in a covered oven-safe dish and warm it at 300°F (150°C) until heated through, checking the center with a thermometer. The USDA FSIS recommends reheating leftovers to 165°F (74°C). A microwave also works: cover the dish, heat in short bursts, and turn or rearrange the pieces between bursts for more even heating. The salmon may be firmer after reheating, so warm it only as long as needed to reach the safe temperature. Freeze portions in a sealed freezer-safe container for up to 2 months for best quality, then thaw overnight in the refrigerator and reheat safely.
Frequently Asked Questions
Can I make the tomato sauce ahead?
Yes. Cook the sauce through the simmering step, cool it promptly, and refrigerate it in a covered container for up to 3 days. When you are ready to eat, bring it to a simmer in an ovenproof skillet, nestle in freshly seasoned salmon, and bake as directed. Starting with chilled sauce may add a few minutes to the time needed for the skillet to heat, so use the fish’s internal temperature rather than assuming the stated upper cooking time will be enough.
Can I use frozen salmon?
Yes, but thaw it completely in the refrigerator before baking, then pat it dry. A partially frozen center cooks unevenly and can release extra water into the sauce. For food safety, do not thaw fish on the counter. If the salmon was vacuum-sealed, follow the package directions; some products should be removed from that packaging before refrigerator thawing.
Do I need an ovenproof skillet?
No. Cook the sauce on the stovetop in any large skillet, then pour it into a shallow baking dish. Nestle the salmon into the sauce and bake at the same temperature. A shallow dish gives the fish room to sit in one layer and helps it cook evenly. Avoid using a very deep casserole, where the sauce may take longer to heat and the fillets can be crowded.
How can I tell when salmon is done without a thermometer?
Flaking easily and turning opaque are useful visual clues, but they do not reliably confirm the safe minimum temperature. A food thermometer is the dependable way to check: measure the thickest part of each fillet and cook fish to 145°F (63°C). If you cook salmon often, an instant-read thermometer also helps prevent overcooking, since you can remove each piece as soon as it reaches the required temperature.
Is this a traditional Spanish dish?
It is a Spanish-inspired recipe, not a claim to one established regional salmon preparation. Its tomato, onion, pepper, olive oil, paprika, and optional saffron draw on ingredients used in many Spanish home-cooking traditions, but combinations and methods vary from place to place and family to family. The recipe adapts those flavors to an oven-baked salmon dinner.
Related
More recipes to cook
Safety notes: safe minimum internal temperatures from USDA FSIS; raw and undercooked fish guidance from the U.S. FDA. Food safety notes
Spotted an error? Tell us and we will correct it (corrections policy).