How Long to Cook a 2 lb Salmon Fillet in the Oven

A 2 lb salmon fillet baked in a hot oven makes an easy centerpiece: season it with lemon, garlic, and dill, then serve it in portions straight from the pan. At 400°F (204°C), plan on about 15–22 minutes, but thickness—not weight alone—determines the exact time, so check the center with a thermometer.

This recipe uses a simple seasoning that complements salmon without covering its flavor. The fish is ready when its thickest part reaches the safe temperature; the suggested bake time is a guide, not a substitute for checking.

Ingredients

One 2 lb salmon fillet (907 g), preferably an even-thickness side, skin on or off
1 tablespoon olive oil (15 ml)
1 teaspoon fine sea salt (5 g)
½ teaspoon freshly ground black pepper (about 1 g)
2 garlic cloves, finely grated or minced (about 6 g)
1 medium lemon (about 110 g), half juiced and half cut into thin slices
1 tablespoon chopped fresh dill (about 3 g), plus a little extra to serve if desired

Instructions

Heat the oven to 400°F (204°C), arranging a rack in the center. While it heats, line a rimmed baking sheet with parchment paper. The parchment makes cleanup easier, and the rim helps contain juices. If the fillet is very long, cut it into two pieces so it fits without folding; try to keep pieces of similar thickness together.
Prepare the salmon while the oven preheats. If it has been refrigerated, take it out as you get the pan ready, but do not leave raw fish at room temperature for an extended period. Pat the surface dry with paper towels; do not rinse it, since splashing can spread raw fish juices around the sink. Feel along the flesh for pin bones and pull any out with clean tweezers.
Set the fillet skin-side down on the lined pan, if it has skin. Drizzle with the olive oil, then season evenly with salt and pepper. Rub the garlic over the flesh, add the lemon juice, and scatter the chopped dill on top. Lay the lemon slices over or alongside the fish. Keeping the fillet in one layer helps it cook evenly; avoid wrapping it tightly in foil, which steams rather than roasts the surface.
Bake on the center rack. For a typical 2 lb side, begin checking at 15 minutes; many fillets take about 15–22 minutes at this temperature. A narrow, thin tail end may cook sooner than the thick center, so check more than one spot if the shape varies. Do not rely only on color, a timer, or whether the fish flakes easily—those are less dependable than measuring the temperature.
Check the thickest portion with an instant-read food thermometer, inserting it sideways into the flesh without touching the pan. USDA FSIS lists 145°F (63°C) as the safe minimum internal temperature for fish; verify that temperature with the thermometer before serving. If the center is below 145°F (63°C), return the pan to the oven and check again after a few minutes. Remove thinner sections as they reach temperature if needed, leaving the thicker section to finish.
Once the salmon reaches 145°F (63°C), take it out and let it rest on the pan for 5 minutes. The rest gives the juices a moment to settle and makes the fillet easier to portion; it is not a replacement for reaching the safe temperature during cooking. If the skin is on, slide a thin spatula between the skin and flesh when serving, or leave the skin attached and let diners separate it on their plates.
Serve warm with the pan juices and lemon slices. Use a broad spatula to lift portions, especially if the fillet is skinless or has begun to separate into flakes. Add extra dill, a squeeze of lemon, or a little black pepper at the table. The 2 lb fillet generally provides six moderate portions, or four larger servings when paired with a light side.

Tips

Let thickness guide your timing. Two fillets can both weigh 2 lb but have very different shapes. A thick center cut needs longer than a flatter, wider piece, and a tapered tail can finish early. Use the 15-minute check as a starting point, then rely on the thermometer. If your fillet is unusually thick, allow extra time rather than raising the oven temperature, which can overcook the outside before the middle is ready.
Choose fresh or thawed fish. If using frozen salmon, thaw it in the refrigerator, ideally overnight, and pat away excess moisture before seasoning. Baking it while still frozen makes timing much less predictable, especially for a large fillet. If it is vacuum-sealed, follow the package directions for removing it from the packaging before refrigerator thawing; do not thaw fish on the counter.
Adjust the seasoning to what you have. Fresh dill can be replaced with 1 teaspoon dried dill (about 1 g), though its flavor is more concentrated and less bright. Parsley or chives work in place of dill for a milder herbal finish. If you do not have fresh lemon, use about 1 tablespoon lemon juice (15 ml) and omit the slices; bottled juice seasons the fish but will not give the same fresh aroma.
Keep the pan simple and avoid overcooking. Parchment is convenient, but a lightly oiled baking dish also works. Avoid crowding the salmon with wet vegetables, which can release liquid and change how it cooks. If adding vegetables, choose quick-cooking ones and leave space around the fish. Start checking early: salmon can go from moist to dry in just a few extra minutes once it is close to done.

Serving Suggestions

Pair the lemon-and-dill salmon with sides that can be prepared while it bakes. Roasted potatoes, steamed rice, couscous, or buttered noodles make a satisfying base for the lemony pan juices. For vegetables, try asparagus, green beans, broccoli, or a crisp salad. A simple cucumber salad or leafy greens bring a cool contrast to the warm fish, while crusty bread is useful for catching the juices.

For a casual meal, place the whole fillet on a platter and let everyone take a portion, or flake it into larger pieces and serve over rice or salad. If serving guests, check the temperature in the thick center before bringing the platter to the table. Keep the lemon wedges and extra herbs on the side so diners can adjust the brightness and seasoning to their taste.

Variations

Maple-mustard glaze: Stir together 1 tablespoon Dijon mustard (15 g) and 1 tablespoon maple syrup (15 ml), then brush a thin layer over the salmon before baking. The glaze adds sweetness and tang and browns more quickly than the plain seasoning, so keep an eye on the surface. Still check the thickest part for 145°F (63°C); a browned exterior does not tell you whether the center is done.

Garlic-herb butter: Replace the olive oil with 2 tablespoons softened unsalted butter (28 g), mixed with the garlic and dill. Dot it over the fish before it goes into the oven. The butter gives the juices a richer flavor, but it may pool on the pan, so spoon a little over the portions when serving rather than pouring all the fat onto them.

Smoky seasoning: Add ½ teaspoon smoked paprika (about 1 g) and a pinch of chili flakes to the salt and pepper. This creates a warmer, lightly smoky flavor without changing the cooking method. Use the paprika as an addition rather than a thick coating, which can darken before the salmon cooks through.

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. For easier reheating, store portions separately and include a little of the pan juice or a teaspoon of water; this helps limit drying. You can also freeze cooked salmon in a well-sealed freezer container for about 2–3 months for best quality. Thaw it in the refrigerator before reheating.

To reheat, place a portion in a covered oven-safe dish with a splash of water or broth and warm it in a 275°F (135°C) oven until the center reaches 165°F (74°C), the safe temperature for reheated leftovers. Check with a food thermometer. The time depends on portion size, so use the temperature rather than a fixed number of minutes. A microwave also works: cover the fish loosely, heat in short intervals, and check that it reaches 165°F (74°C). Reheated salmon will be firmer than freshly baked fish, so gentle heating helps preserve its texture.

Frequently Asked Questions

How long does a 2 lb salmon fillet take at 400°F?
Most 2 lb fillets take about 15–22 minutes at 400°F (204°C), but a thick center can take longer and a thin tail can finish earlier. Start checking at 15 minutes and use an instant-read thermometer in the thickest portion. The fish is ready when it reaches 145°F (63°C).

Should I bake salmon covered or uncovered?
Bake it uncovered for the seasoned, lightly roasted surface in this recipe. Covering it traps steam and softens the surface, although foil can be useful if the fish is browning too quickly before its center reaches temperature. If you cover it, keep checking the thickest part with a thermometer and uncover it near the end if you want the surface less moist.

Do I need to flip a salmon fillet in the oven?
No. Put the salmon skin-side down, if it has skin, and leave it in place while it bakes. Flipping a large, tender fillet is awkward and can cause it to break apart. The heat circulates around the fish, so turning is unnecessary; a rimmed pan and even placement on the center rack are enough.

Can I cook a 2 lb salmon fillet from frozen?
It is better to thaw a large fillet in the refrigerator first so it cooks more evenly and the seasoning adheres. Cooking from frozen is possible, but the outside can finish well before the center, and the timing is difficult to predict for a whole side. If you do cook it from frozen, follow the fish package guidance and confirm 145°F (63°C) in the thickest part with a thermometer.

How can I tell if salmon is done without a thermometer?
Flaking and a change from translucent to opaque can offer clues, but neither confirms the safe minimum temperature reliably, especially in a thick fillet. A thermometer is the dependable way to check. Insert it sideways into the thickest part, avoiding the pan, and cook until it reads 145°F (63°C).

Can I prepare the salmon ahead?
You can mix the seasoning and chop the dill ahead, and you can portion the salmon shortly before baking. For best texture, do not leave the fish coated in lemon juice for hours, since the acid can change the surface. Keep raw salmon refrigerated until it is time to cook, and bake it close to serving time.

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Safety notes: safe minimum internal temperatures from USDA FSIS; raw and undercooked fish guidance from the U.S. FDA. Food safety notes

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