Tilapia Recipes With Old Bay: Baked Fillets

These baked tilapia fillets are seasoned with Old Bay, lemon, garlic, and a little butter for a savory, gently spiced weeknight dinner. The mild fish cooks quickly in the oven and pairs easily with vegetables, rice, or potatoes, while the lemon brightens the seasoning without masking the tilapia’s delicate flavor.

Ingredients

4 tilapia fillets, about 6 oz (170 g) each, or 1 1/2 lb (680 g) total
2 tbsp unsalted butter (28 g)
1 tbsp olive oil (15 ml)
1 tbsp fresh lemon juice (15 ml), plus 1 medium lemon (about 115 g) for serving
1 garlic clove, finely minced (about 3 g)
1 1/2 tsp Old Bay seasoning (about 4 g)
1/4 tsp freshly ground black pepper (about 0.5 g)
2 tbsp chopped fresh parsley (about 8 g), optional

Instructions

Heat the oven and prepare the pan. Set a rack in the center of the oven and heat it to 425°F (220°C). Line a rimmed baking sheet or shallow baking dish with parchment paper or foil. The stated 15-minute prep time includes preheating; get the other ingredients ready while the oven heats.
Prepare the fillets. If the fish is damp, pat it dry on both sides with paper towels; do not rinse raw fish, since splashing can spread bacteria around the sink. Check for any pin bones and remove them with clean tweezers. Arrange the fillets in a single layer with a little space between them. If one fillet is much thinner than the others, tuck its narrow end underneath so it cooks more evenly.
Mix the lemon-garlic coating. Melt the butter in a small microwave-safe bowl or saucepan. Stir in the olive oil, lemon juice, and minced garlic. Brush or spoon the mixture over both sides of the fillets, using most of it on the upper side once the fish is arranged on the pan.
Season and bake. Sprinkle the Old Bay and black pepper evenly over the fish. Bake for 10 to 14 minutes, depending on thickness; start checking thinner pieces at 10 minutes. The fish should look opaque and separate into moist flakes when gently pressed with a fork. Check the thickest part of a fillet with a food thermometer: USDA FSIS gives fish a safe minimum internal temperature of 145°F (63°C). If it has not reached that temperature, return it to the oven and check again after a short interval.
Rest briefly and serve. Let the fillets stand on the pan for 2 minutes, then transfer them carefully to plates with a thin spatula. Spoon any buttery lemon juices from the pan over the fish. Finish with parsley, if using, and serve with lemon wedges.

Tips

Use the seasoning thoughtfully. Old Bay already contains salt, so this recipe does not add extra. Different packages and personal tastes vary; if you like a stronger spice flavor, serve extra Old Bay at the table rather than coating the fish heavily before baking. Too much seasoning can overwhelm mild tilapia or make the surface salty.
Dry fish browns and seasons better. Patting the fillets dry helps the butter mixture cling rather than slide off into the pan. If you thawed the fish, dry it especially well, since thawed fillets can release more moisture. Do not leave raw seafood at room temperature while the oven heats; keep it refrigerated until you are ready to cook.
Let thickness guide the timer. Fillets are not always uniform, and a thin tail piece can finish several minutes before a thick center portion. Check the smaller pieces first and remove each one when it reaches 145°F (63°C), if needed, while the thicker fillets continue cooking. A thermometer is more reliable than judging doneness by color alone.
Swap the fat if needed. For a dairy-free version, replace the butter with another tablespoon of olive oil. It will taste less rich but still carry the lemon, garlic, and Old Bay well. If you use salted butter, keep the recipe as written without adding salt, and taste the finished fish before seasoning at the table.

Serving Suggestions

Serve the fish as soon as it is cooked, with lemon wedges so each person can add acidity to taste. Steamed rice, couscous, or buttered small potatoes make easy sides that catch the lemony pan juices. For a lighter plate, pair the fillets with roasted broccoli, green beans, asparagus, or a crisp salad. If you are serving rice or potatoes, start them before the fish so everything is ready together; the fillets need only a short time in the oven.

For a casual meal, tuck a warm fillet into a soft roll or tortilla with shredded cabbage and a spoonful of plain yogurt or mayonnaise mixed with lemon. Keep any sauce on the side until serving so the fish’s seasoned surface stays pleasant rather than soggy. The recipe also works well as a simple main course for a family dinner, with the parsley and fresh lemon making the plate look finished without requiring an elaborate garnish.

Variations

Add a crisp topping. Mix 1/2 cup panko breadcrumbs (about 30 g) with 1 tbsp olive oil (15 ml) and 1 tbsp chopped parsley (about 4 g). After brushing the fish with the lemon-garlic mixture, press a thin layer of crumbs onto each fillet, then sprinkle on the Old Bay. Bake as directed, checking that the fish reaches 145°F (63°C). The topping adds crunch, though it will be less crisp if covered after baking.
Make it spicier. Stir a pinch of cayenne, about 1/8 tsp (0.3 g), into the Old Bay before seasoning, or add a few drops of hot sauce to the melted butter mixture. Start small: the seasoning is already savory, and extra heat can quickly take over the mild fish.
Use another fish. Cod, haddock, or pollock can take the same lemon, garlic, and Old Bay treatment. Choose fillets of similar thickness and begin checking at the same time, but use a thermometer rather than assuming another fish will finish on the tilapia schedule. The safe minimum for fish remains 145°F (63°C).
Cook it on the stovetop. For a quick variation, use a large nonstick skillet over medium heat and cook the seasoned fillets in the butter-and-oil mixture, turning once when the first side releases easily. Exact time depends on thickness and pan heat, so check the center with a thermometer for 145°F (63°C). Avoid crowding the pan; cook in batches if necessary.

Storage and Reheating

Refrigerate leftover tilapia within 2 hours of cooking, storing it in a shallow, airtight container. Cooked fish keeps for 3 to 4 days in the refrigerator. For the best texture, keep the fillets whole rather than flaking them before storage. If you will not eat the leftovers within that period, freeze them promptly in a freezer-safe container; they are best used within about 2 to 3 months for quality. Thaw frozen portions in the refrigerator, not on the counter.

To reheat, place the fish in a covered oven-safe dish with a teaspoon of water or a small dab of butter, then warm it at 300°F (150°C) until the center reaches 165°F (74°C), the USDA FSIS temperature for reheated leftovers. The exact time varies with portion size, so check with a food thermometer rather than relying only on a timer. A microwave also works: cover the fish loosely and heat in short bursts at medium power, checking between bursts to reduce drying. Reheated tilapia can be less tender than freshly baked fish, so warm only the amount you plan to serve.

Frequently Asked Questions

Can I use frozen tilapia?

Yes, but thaw it completely in the refrigerator first, following the package directions if provided. Drain away any liquid and pat the fillets thoroughly dry before seasoning. Baking the fish while still frozen can make the coating watery and the cooking uneven, so allow time for thawing rather than trying to compensate with a much longer oven time.

How can I tell when tilapia is done?

The most dependable check is a food thermometer inserted into the thickest part of a fillet; it should read 145°F (63°C). The flesh should also be opaque and flake with gentle pressure. If the center is still translucent or the thermometer is below the safe temperature, continue baking and check again shortly. Avoid repeatedly breaking the fillet apart, which lets moisture escape.

Is Old Bay seasoning very salty?

It contains salt along with herbs and spices, and its saltiness can vary by product. The recipe uses 1 1/2 teaspoons for four portions and adds no separate salt. If you are sensitive to salty flavors, begin with 1 teaspoon, bake the fish, and offer more seasoning at the table. Lemon juice can brighten the flavor, but it does not remove salt.

Can I make the fish ahead?

You can mix the butter, oil, lemon juice, and garlic shortly ahead and refrigerate the mixture, then gently remelt it before using. For the best texture, season and bake the fillets close to serving time rather than leaving them coated for hours; lemon juice can change the surface of fish if it sits too long. Cooked leftovers can be refrigerated and reheated as described above.

What can I use instead of tilapia?

Use a mild white fish such as cod, haddock, or pollock, ideally in fillets with a similar thickness. The flavor will differ slightly, but the lemon, garlic, and Old Bay work well with all of them. Check doneness in the thickest part and cook fish to 145°F (63°C), since oven timing varies with the fish’s cut and thickness.

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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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