Baked Tilapia Recipes With Mayo for an Easy Oven Dinner

This oven-baked tilapia has mild, flaky fish under a tangy mayonnaise topping with Parmesan and crisp panko crumbs. It is a simple weeknight main dish: the mayo helps the seasoned topping cling to the fish, while a hot oven cooks the fillets quickly; serve it with lemon and a vegetable or grain.

Ingredients

1 1/2 lb tilapia fillets (680 g), about four 6-ounce (170 g) fillets, thawed if frozen
1/3 cup mayonnaise (75 g)
1 tablespoon lemon juice (15 ml), plus lemon wedges for serving
1 teaspoon Dijon mustard (5 g)
1/2 teaspoon garlic powder (about 1.5 g)
1/2 teaspoon paprika (about 1 g)
1/2 teaspoon fine salt (3 g), or to taste
1/4 teaspoon black pepper (about 0.5 g)
1/3 cup finely grated Parmesan (30 g)
1/4 cup panko breadcrumbs (15 g)
1 tablespoon chopped fresh parsley (4 g), plus a little more if desired
1 teaspoon olive oil (5 ml), for the baking dish

Instructions

Heat the oven to 400°F (205°C). Lightly coat a shallow baking dish with the olive oil. Choose a dish that holds the fillets in one layer with a little space between them; crowded fish can steam and release liquid instead of baking evenly.
If the tilapia was frozen, thaw it completely in the refrigerator and drain away any liquid. Pat each fillet dry with paper towels. Drying the surface helps the topping stay in place and prevents excess moisture from making the panko soggy. Set the fillets in the prepared dish with the thicker ends toward the outside, where the oven is usually hottest.
In a small bowl, stir together the mayonnaise, lemon juice, Dijon mustard, garlic powder, paprika, salt, and black pepper until smooth. Fold in the Parmesan and panko, then stir in the parsley. The mixture should be thick enough to spread rather than run off the fish. If it seems unusually stiff, mix in another teaspoon (5 ml) of lemon juice or water.
Divide the mixture evenly among the fillets and spread it in a thin layer over the top of each one, reaching close to the edges. Avoid piling it into a thick mound: a thinner, even coating warms through at the same pace as the fish and gives the crumbs more surface area to brown.
Bake uncovered for 14 to 15 minutes. Start checking at 14 minutes because fillets vary in thickness and ovens differ. Insert an instant-read food thermometer sideways into the thickest part of a fillet without touching the dish. USDA FSIS guidance sets the safe minimum internal temperature for fish at 145°F (63°C); cook until the center reaches that temperature and the fish separates into moist flakes. If it has not reached 145°F (63°C), return it to the oven and check again after a minute or two.
Let the fish rest in the dish for 2 minutes, then serve with lemon wedges. The topping will be hot just out of the oven, and the brief rest makes the fillets easier to lift without breaking. Use a thin spatula and slide it underneath each fillet rather than pulling on the crust.

Tips

Choose fillets of similar thickness. Tilapia cooks quickly, so a very thin tail piece can be done before a thick center-cut fillet. If your fillets vary a lot, check the thinner pieces first and remove each one as soon as it reaches 145°F (63°C), leaving thicker pieces in the oven until they are done. A thermometer is more dependable than judging doneness by color alone.
Use thawed fish and dry it well. Baking fish directly from frozen can make the topping slide and the cooking time unpredictable. Thaw it in the refrigerator, then blot away surface moisture. Do not rinse raw fish in the sink, where splashes can spread raw seafood juices to nearby surfaces.
Adjust the topping to what you have. Full-fat or reduced-fat mayonnaise both work, though reduced-fat mayonnaise can make a slightly less rich topping. If you do not have Dijon, use 1 teaspoon (5 g) of yellow mustard; it tastes a little sharper and less wine-like. Finely grated aged hard cheese can replace Parmesan, while plain dry breadcrumbs can stand in for panko but make a somewhat denser crust.
Keep the coating moderate. Spread it evenly instead of adding extra just to use every last bit. Too much topping can cover the fish with a heavy layer that stays soft and makes it harder to judge doneness. If you want a more browned surface, use a shallow dish and keep the fish uncovered rather than trying to compensate with a long bake that could dry out the fillets.

Serving Suggestions

Serve the tilapia straight from the oven with lemon wedges so each person can add fresh acidity at the table. A simple green vegetable, such as steamed broccoli, green beans, or asparagus, balances the creamy, savory topping. For a more filling dinner, add rice, roasted potatoes, couscous, or warm crusty bread to catch the juices and crumbs left in the dish.

A crisp salad also works well: try lettuce, cucumber, tomatoes, and a light vinaigrette rather than another rich dressing. If you are serving several side dishes, keep their seasoning straightforward so the lemon, mustard, Parmesan, and paprika in the fish remain noticeable. For a family-style meal, put the baking dish on a heat-safe trivet and serve the fillets with a spatula; the topping is delicate, so individual pieces may not lift as neatly as a firm breaded cutlet.

Variations

Lemon-herb: Add 1 teaspoon (about 1 g) of finely grated lemon zest and swap the parsley for dill or chives. The zest gives the topping a brighter aroma without adding much liquid. Keep the lemon wedges on the side, since some diners may prefer the fish as written.

Spiced: Replace the paprika with 1/4 teaspoon (about 0.5 g) of smoked paprika and add a pinch of cayenne, up to 1/8 teaspoon (about 0.3 g). This gives the crust a deeper, gently warm flavor. Use less cayenne for a mild version, and do not increase the oven temperature to make it spicier; the seasoning belongs in the topping.

Without breadcrumbs: Leave out the panko and use the mayonnaise, mustard, seasonings, and Parmesan mixture as a smooth coating. It will be creamy rather than crisp, so check the fish at the same time and cook only until it reaches the safe temperature. Alternatively, replace the panko with an equal amount of finely crushed plain crackers; the result is more salty and compact, so taste the topping before adding extra salt.

Other mild fish: The topping can be used on similarly sized cod or haddock fillets. These fish may be thicker or more delicate than tilapia, so the stated timing is only a starting point; check the thickest part with a thermometer and cook to 145°F (63°C). For thick pieces, allow extra oven time rather than spreading the topping more thinly over raw fish.

Storage and Reheating

Refrigerate leftover tilapia within 2 hours of cooking, placing it in a covered, shallow container once it has stopped giving off heavy steam. Keep it refrigerated at 40°F (4°C) or colder and use it within 3 to 4 days. The topping softens in storage, and the fish may become drier with each reheating, so it is best to save portions you expect to eat rather than repeatedly warming the whole dish.

For best texture, reheat a portion in a covered oven-safe dish at 300°F (150°C) until hot throughout, checking the center with a food thermometer. Leftovers should reach 165°F (74°C) when reheated. A microwave is also practical: cover loosely, heat in short intervals, and check the center so the edges do not overcook while the middle is still cool. Do not reheat the fish more than once if you can avoid it. You can freeze leftovers in a tightly sealed freezer-safe container, though the topping and fish may lose some texture; thaw in the refrigerator and reheat to 165°F (74°C).

Frequently Asked Questions

Can I use frozen tilapia?
Yes, but thaw it completely in the refrigerator before baking, then drain and pat it dry. Baking frozen fillets with the topping already spread over them tends to release extra water and can leave the coating wet while the center is still cooking. If you need a faster thaw, keep the fish in a leakproof bag and submerge it in cold water, changing the water every 30 minutes; cook it promptly after thawing.

How do I know when baked tilapia is done?
Check the thickest part with an instant-read thermometer; fish is safely cooked at 145°F (63°C), the USDA FSIS minimum. Properly cooked tilapia is opaque and separates into flakes, but appearance is a useful additional clue rather than a substitute for the temperature check. Thin fillets can pass from tender to dry quickly, so begin checking at 14 minutes.

Can I prepare the topping ahead?
Yes. Stir the mayonnaise mixture together, cover it, and refrigerate it for up to 24 hours. For the crispest crumbs, you can also mix in the panko shortly before baking rather than letting it sit in the wet mixture. Keep raw fish separate from the prepared topping until you are ready to assemble, and do not leave either at room temperature for an extended period.

Can I make this recipe without Parmesan?
Yes. Omit it and add 2 tablespoons (10 g) more panko for a lighter, less savory crust, or use the same quantity of another finely grated hard cheese. Parmesan contributes salt and a nutty flavor, so taste the mixture before baking and adjust the salt modestly if your replacement cheese is already salty.

Why did my tilapia turn out watery?
Common causes include fish that was not fully thawed, excess surface moisture, fillets packed closely together, or a baking dish that traps liquid. Thaw and blot the fish, leave a little room between pieces, and use a shallow dish. Some liquid can still collect as fish cooks; it does not necessarily mean anything went wrong, but the topping will be crisper when the fish starts dry.

Can I double the recipe?
Yes, double every ingredient and use two baking dishes or one large dish that leaves space around the fillets. If you place two dishes in the oven at once, leave room for air to circulate and rotate their positions partway through if your oven has hot spots. The baking time may change slightly, so judge each fillet by its thickest point and the 145°F (63°C) temperature, not by the clock alone.

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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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