A thawed 6 oz (170 g) salmon fillet takes about 12–15 minutes in a 400°F (205°C) oven, with thickness affecting the exact time. Season it simply with olive oil, salt, pepper, and lemon, then use a food thermometer to check that it reaches a safe internal temperature.
Ingredients
- 1 salmon fillet, about 6 oz (170 g), thawed; skin-on or skinless
- 1 tsp olive oil (5 ml)
- ⅛ tsp fine salt (about 0.7 g), or to taste
- ⅛ tsp ground black pepper (about 0.3 g)
- 1 lemon wedge, about ¼ lemon (15 g)
- 1 tsp chopped fresh dill (about 1 g), optional
Instructions
- Preheat the oven to 400°F (205°C) and allow about 10 minutes for it to heat. Set a rack in the center. Line a small rimmed baking sheet or oven-safe dish with parchment or foil for easier cleanup; the lining is optional. If using foil, lightly oil the spot where the fish will sit so the salmon is less likely to stick.
- Pat the salmon dry with paper towels, especially if it was thawed from frozen. Check for pin bones by running a clean fingertip along the middle of the flesh and pulling out any bones you find with clean tweezers. Place the fillet skin-side down, if it has skin, on the prepared pan. Rub the top with the olive oil, then season evenly with salt and pepper.
- Bake the fillet uncovered for 12–15 minutes. Begin checking at 10 minutes if it is noticeably thinner than 1 inch (2.5 cm); a thick piece may need the full 15 minutes or a little longer. The 6-ounce weight is a useful guide, but thickness, starting temperature, oven accuracy, and whether the fillet is crowded in a dish all affect timing. Do not use color or the clock alone to decide that fish is safely cooked.
- Check the thickest part with an instant-read food thermometer, inserting the probe from the side if the fillet is thin. The USDA FSIS safe minimum internal temperature for fish is 145°F (63°C); cook until the center reaches that temperature. If it is below 145°F (63°C), return it to the oven for 1–2 minutes and check again. A thermometer gives a more reliable answer than judging flakes, which can vary with the salmon’s color and texture.
- Take the pan out when the salmon reaches 145°F (63°C). Squeeze the lemon wedge over the fish and scatter on dill if using. Let it stand for about 2 minutes while you plate the sides, then serve promptly. The brief pause makes it easier to handle, but do not count on resting to bring undercooked fish up to the safe minimum temperature.
Tips
- Use thickness to refine the time. A 6-ounce portion that is broad and thin can cook faster than a compact, thick portion of the same weight. The 12–15-minute range is for a thawed fillet around 1 inch (2.5 cm) thick. If your piece is much thinner, start checking early; if it is thicker, expect to add a few minutes and verify the center with a thermometer.
- Keep the seasoning flexible. No fresh dill? Leave it out or use ¼ tsp dried dill (about 0.2 g), which is more concentrated. A neutral oil such as avocado oil can replace olive oil in the same quantity. Fine salt is easy to distribute in a small amount; if using flaky or coarse salt, crush it lightly and season sparingly because the crystals measure differently by volume.
- Choose a pan that fits. The fillet should lie flat with space around it, rather than being folded or crowded against other pieces. A crowded pan can trap moisture and make timing less predictable. If cooking more portions, arrange them with a little space and check each thickest center rather than assuming every piece will finish together.
- Avoid overcooking by checking early. Salmon continues to feel firmer as it heats, and a few extra minutes can make a small fillet dry. Start checking near the early end of the range, but use the thermometer target rather than removing it at a lower temperature. If you do not own an instant-read thermometer, consider getting one; appearance alone cannot verify the safe minimum reliably.
Serving Suggestions
Serve the hot fillet with rice, roasted potatoes, or couscous to catch the lemony juices. For a quick vegetable side, pair it with steamed green beans, roasted broccoli, sautéed spinach, or a crisp salad. A spoonful of plain yogurt mixed with lemon zest and chopped dill makes a simple cool sauce; keep the sauce separate until serving so the salmon’s surface stays nicely seasoned.
For a fuller plate, add a small grain salad with cucumber and herbs, or put the fish over greens with a light vinaigrette. If serving it with bread, warm the bread while the salmon bakes. Since this recipe seasons one fillet simply, sauces and sides can add bolder flavors without requiring changes to the oven timing.
Variations
Garlic and herbs: Mix ½ tsp finely minced garlic (about 1.5 g) into the oil and add a little chopped parsley or thyme. Keep the garlic in a thin layer so it does not burn on the exposed surface. Finish with lemon after baking.
Maple mustard glaze: Stir together 1 tsp maple syrup (5 ml) and 1 tsp Dijon mustard (5 ml), brush a thin coat over the salmon, and bake as directed. The sweet glaze may brown sooner than the plain fillet, so check it near the early end of the time range. Dijon gives a sharp, savory note; whole-grain mustard makes the glaze more textured.
Smoky seasoning: Add ¼ tsp smoked paprika (about 0.6 g) to the salt and pepper. For a gentle heat, include a pinch of cayenne. Start with a small amount, especially if serving the fish alongside already-spiced sides.
Different citrus: Replace the lemon wedge with a lime wedge or a small orange wedge. Lime tastes sharper, while orange is sweeter and works well with the maple-mustard variation. Citrus changes the flavor, not the cooking time, and is best squeezed on after baking.
Storage and Reheating
Refrigerate leftover salmon within 2 hours of cooking, in a shallow airtight container. It keeps for 3–4 days in the refrigerator. If the room is hotter than 90°F (32°C), refrigerate it within 1 hour. Store the fish separately from wet salad ingredients or sauces when possible, so it does not become soggy.
For reheating, place the portion in an oven-safe dish with a teaspoon of water or broth and cover loosely with foil. Warm in a 275°F (135°C) oven until heated through, checking the center with a food thermometer; USDA FSIS guidance is to reheat leftovers to 165°F (74°C). A microwave also works: cover the fish and heat in short intervals at medium power, checking between intervals to avoid drying it out. Reheated salmon may be firmer than freshly cooked salmon. You can also flake cold leftover fish into a salad or sandwich, provided it has been stored safely and kept chilled.
Frequently Asked Questions
How long does a 6 oz salmon fillet take at 400°F?
For a thawed fillet about 1 inch (2.5 cm) thick, allow roughly 12–15 minutes at 400°F (205°C). Begin checking around 10 minutes if it is thin, and allow extra time for a thick piece. The USDA FSIS safe minimum is 145°F (63°C) at the thickest point, so a thermometer is the best way to confirm it is done.
Should I bake salmon at 350°F or 400°F?
Either temperature can work, but the timing changes. At 350°F (175°C), a 1-inch-thick fillet generally takes longer, often about 15–20 minutes; at 400°F (205°C), expect about 12–15 minutes. These are estimates, not guarantees, because thickness and oven calibration matter. Whichever temperature you choose, cook the center to 145°F (63°C).
Do I bake salmon covered or uncovered?
Bake it uncovered for the lightly roasted surface and straightforward timing in this recipe. Covering it with foil traps steam and gives a softer, less browned finish; it can also change how quickly the center heats, so check the temperature rather than relying on the usual minutes. A loose foil cover can help shield a glaze if it is browning too quickly, but do not seal the fish tightly.
Can I cook a 6 oz salmon fillet from frozen?
For the most predictable result, thaw it in the refrigerator first, then pat it dry and use the timing above. If baking from frozen, separate the fillet from any packaging, place it in the heated oven, and expect it to take longer—often around 20–25 minutes depending on thickness. Check the thickest part with a thermometer and continue cooking until it reaches 145°F (63°C); do not use the thawed-fillet timing for a frozen piece.
How can I tell when salmon is done without cutting it open?
An instant-read thermometer is the dependable option: insert it into the thickest part and look for 145°F (63°C). The flesh may also look opaque and separate into flakes when pressed gently, but those visual signs do not confirm a safe temperature. If you want the fish less dry, avoid baking it longer than necessary once it has reached the safe minimum.
Related
- Healthy Enchiladas Recipe with Chicken, Beans, and Corn
- Beef and Cheese Enchiladas Recipe with Red Sauce
- Enchiladas Poblano: Creamy Roasted Pepper Recipe
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).