This baked tilapia turns mild fish fillets into a bright, satisfying dinner with lemon, garlic, and a crisp panko-Parmesan topping. It cooks quickly in the oven, needs no frying, and pairs easily with vegetables, rice, or a fresh salad.
Ingredients
- 1½ lb tilapia fillets (680 g), about 4 fillets, thawed if frozen
- ½ tsp kosher salt (3 g)
- ¼ tsp freshly ground black pepper (0.5 g)
- 1 tbsp Dijon mustard (15 g)
- 1 tbsp lemon juice (15 ml), plus lemon wedges for serving
- ¾ cup panko breadcrumbs (45 g)
- ⅓ cup finely grated Parmesan cheese (30 g)
- 3 tbsp unsalted butter, melted (42 g)
- 1 tbsp olive oil (15 ml)
- 2 garlic cloves, finely minced (about 6 g)
- 1 tsp finely grated lemon zest (2 g)
- ½ tsp sweet paprika (1 g)
- 2 tbsp finely chopped fresh parsley (8 g), divided
Instructions
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Heat the oven to 425°F (220°C). Set a rack in the middle of the oven and line a rimmed baking sheet with parchment paper or foil. If using foil, brush it lightly with oil so the fish does not stick. Take the tilapia out of its packaging, check for any pin bones, and pat every surface dry with paper towels. Dry fillets brown more reliably and help the topping stay crisp. If the fillets vary greatly in thickness, arrange the thinner ones toward the edge of the pan, where they can be removed first if they finish early.
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In a small bowl, stir together the panko, Parmesan, melted butter, olive oil, minced garlic, lemon zest, paprika, and 1 tablespoon of the chopped parsley. Mix until the crumbs look evenly moistened, breaking up any clumps of garlic. In a separate small bowl, combine the Dijon mustard and lemon juice. Season both sides of the tilapia with the salt and pepper, then place the fillets on the prepared baking sheet with a little room between them.
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Brush a thin layer of the mustard-lemon mixture over the top of each fillet. Spoon the crumb mixture over the fish and press it gently into an even layer; a light press helps it adhere without squeezing the fillets. Divide the crumbs evenly, concentrating them on the thicker parts rather than letting a thick pile spill onto the pan. If a few crumbs fall around the fish, leave them in place, but avoid covering the exposed edges of each fillet completely.
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Bake for 12 to 14 minutes, checking the thinner fillets at 12 minutes. The topping should be golden and the flesh should turn opaque and separate easily when nudged with a fork. Check the thickest part of a fillet with an instant-read food thermometer, without touching the pan. The USDA FSIS safe minimum internal temperature for fish is 145°F (63°C); continue baking briefly if needed to reach it. Let the fish rest on the pan for 2 minutes, then finish with the remaining parsley and serve with lemon wedges.
Tips
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Dry the fish well. Tilapia often releases moisture as it cooks, particularly after thawing. Blot the fillets on both sides before seasoning, and do not crowd them on the baking sheet. If the fish is wet, the crumbs can soften instead of browning, and extra liquid may collect around the edges.
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Use the right crumbs. Panko makes a light, crisp topping, but ordinary dry breadcrumbs work too; measure the same amount by volume, knowing the topping will be a little finer and denser. For a gluten-free version, use certified gluten-free panko. The cheese and butter still brown, so check the top toward the end rather than relying only on color.
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Adjust for thickness, not just the clock. Thin fillets can be ready before thick center-cut pieces. Start checking early, and remove any piece that has reached 145°F (63°C) while the others finish. A thermometer gives a more dependable answer than judging doneness by flaking alone, since overcooked tilapia can become dry and break apart.
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Make the topping ahead, not the assembled fish. The crumb mixture can be covered and refrigerated for up to a day, then stirred before use. Add it to the fish just before baking; leaving coated raw fillets in the refrigerator for a long time can make the panko damp. Use fresh lemon wedges at the table for a brighter finish.
Serving Suggestions
Serve the tilapia as soon as it has rested, while the crumbs are still crisp. Steamed rice, buttered couscous, or roasted potatoes make an easy base for catching the lemony juices. For a lighter plate, add roasted broccoli, green beans, asparagus, or a simple salad of greens, cucumber, and tomatoes. A slaw with cabbage and a mild vinaigrette also brings a cool crunch that contrasts with the warm coating.
For a more complete dinner, add a sauce on the side rather than pouring it over the crust. Plain yogurt mixed with chopped herbs and a little lemon makes a quick cool dip; tartar sauce or a mild garlic mayonnaise also works. Put extra lemon wedges on the table so each person can add acidity to taste. If serving several sides, keep their seasoning simple: the fish already has salt, Parmesan, garlic, and lemon in the crumb topping.
Variations
Add herbs or spice: Replace the parsley with chopped dill, chives, or a mixture of soft herbs. For gentle heat, add ¼ teaspoon cayenne to the crumbs; for a smoky note, use smoked paprika instead of sweet paprika. Keep the amount modest so the seasoning complements the mild fish instead of covering it. A little finely grated lemon zest can also be added at the table for a stronger citrus aroma.
Change the cheese or binder: Pecorino Romano can replace Parmesan, though it is saltier, so reduce the added salt slightly. If you do not have Dijon, use mayonnaise in a thin layer to help the crumbs stick; it gives a richer coating and a less tangy flavor. For a dairy-free version, omit the Parmesan and replace the butter with olive oil. The topping will still crisp, but it will have less savory depth.
Try another mild white fish: This method also suits cod, haddock, or pollock fillets of similar thickness. Since different fish vary in thickness and moisture, use the suggested bake time as a guide and check each piece with a thermometer for 145°F (63°C). Do not assume a thicker replacement will finish at the same time as tilapia. Keep the crumbs and lemon-mustard brush the same for an easy variation without changing the basic method.
Storage and Reheating
Refrigerate leftover fish within 2 hours of cooking, in a shallow airtight container. It keeps for 3 to 4 days in the refrigerator. The coating gradually softens in storage, so keep the fish separate from salads, sauces, and other moist sides. If you expect leftovers, set aside any lemon wedges or sauce rather than storing them on top of the fish.
For the best texture, reheat the fillets on a rack or baking sheet in a 350°F (175°C) oven until hot throughout; an air fryer can also help revive the crumb coating. Reheat leftovers to 165°F (74°C), checking the thickest portion with a food thermometer. The coating may not be quite as crisp as it was freshly baked, but dry heat works better than the microwave for maintaining its texture. If using a microwave for convenience, heat in short bursts and expect softer crumbs.
Cooked tilapia can be frozen in a well-sealed freezer container for up to 2 months for best quality. Thaw it in the refrigerator before reheating, and avoid repeatedly cooling and warming the same portion. Do not leave cooked fish at room temperature for more than 2 hours, or more than 1 hour when the surrounding temperature is above 90°F (32°C).
Frequently Asked Questions
Can I use frozen tilapia fillets?
Yes. Thaw them fully before cooking so the fish cooks evenly and excess water can be removed. The safest simple method is to thaw the fillets overnight in the refrigerator. For a quicker option, keep them in a leakproof bag and submerge the bag in cold water, changing the water every 30 minutes; cook promptly after thawing. Pat the fish very dry before seasoning, especially if it was packaged with ice glaze.
How can I tell when tilapia is done?
Check the thickest part of each fillet with an instant-read thermometer. Fish is cooked to the USDA FSIS safe minimum when it reaches 145°F (63°C). The flesh should also look opaque and separate into flakes, but those visual signs are less precise than temperature. Thin pieces may finish sooner, so check them individually and remove them from the oven when they are ready.
Can I prepare the fish ahead of time?
You can mix the crumb topping up to a day ahead and keep it covered in the refrigerator. For the best crust, wait to season and coat the fish until shortly before baking. If you need to prep the fillets earlier, keep them covered in the refrigerator and pat them dry again before adding the mustard and crumbs. Do not leave raw fish out on the counter while preparing the other parts of dinner.
Why did my panko topping turn soft?
Moisture is the usual cause. Tilapia that was not fully thawed or dried can release water under the crumbs, and tightly packed fillets can trap steam. Pat the fish dry, leave a little space around each piece, and bake on a preheated oven setting rather than covering the pan. The topping is meant to be crisp on top, though the side touching the fish will naturally be more tender.
Can I make this recipe without Parmesan?
Yes. Leave it out and add about 2 tablespoons (15 g) more panko, plus a small pinch of salt if needed. You can also use a similar hard cheese, keeping in mind that some varieties are saltier than Parmesan. For a dairy-free topping, use olive oil instead of butter and omit the cheese; the crumbs will still brown, but the finished flavor will be lighter and less savory.
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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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