Baked fish tacos work well when the fish stays in large, moist flakes and the slaw provides crunch without dripping through the tortillas. This recipe uses a simple oil-and-spice coating instead of breading, so the fish can go directly onto a baking tray. Lime appears in the slaw and the sauce, giving each component a different role rather than soaking the fish in a long acidic marinade.
Choose cod, haddock, or another mild white fish with similar thickness across the fillets. Thin tail pieces cook sooner than thick center cuts and should be checked separately. The baking window below is only an estimate; a food thermometer determines when each piece is ready.
Yield, Timing, and Equipment
Makes 8 tacos, serving 4. Preparation takes about 20 minutes and baking takes approximately 10 to 15 minutes, for around 35 minutes total with some overlap. Use a rimmed baking sheet, parchment, two bowls, and a food thermometer. If the fish is frozen, thaw it in the refrigerator beforehand; thawing time is not included.
Ingredients
- 1 1/4 pounds boneless white fish fillets, about 3/4 inch thick
- 1 tablespoon olive oil
- 1 teaspoon smoked paprika
- 1/2 teaspoon ground cumin
- 1/2 teaspoon garlic powder
- 1/2 teaspoon fine salt, divided
- 1/4 teaspoon black pepper
- 3 cups finely shredded cabbage
- 1 medium carrot, grated
- 2 scallions, thinly sliced
- 2 tablespoons lime juice for the slaw
- 2 teaspoons olive oil for the slaw
- 1/3 cup plain Greek yogurt
- 1 tablespoon lime juice for the sauce
- 1 tablespoon water for the sauce
- 8 small corn tortillas
- 2 tablespoons chopped cilantro, optional
- 1 lime, cut into wedges for serving, optional
Prepare the Cold Components First
Shred cabbage into thin ribbons that are easy to bite through in a small tortilla. Toss with carrot and scallions in a clean bowl. Keep this preparation separate from raw seafood: use a different cutting board, or wash and sanitize equipment before switching tasks. Mix the yogurt sauce before opening the fish package, then refrigerate both sauce and undressed vegetables.
Pat thawed fish dry with paper towels and check for pin bones by running clean fingers gently over the flesh. Remove any with clean tweezers. Do not rinse raw fish in the sink, where splashes can spread contamination. Keep it chilled until the oven is hot and the tray is ready.
Numbered Taco Instructions
- Heat the oven to 425 F. Line a rimmed tray with parchment. Combine paprika, cumin, garlic powder, black pepper, and 1/4 teaspoon salt in a small bowl.
- Place fish on the tray with space between pieces. Brush with 1 tablespoon olive oil and sprinkle evenly with the spice mixture. Wash hands after handling the raw fish.
- Bake for approximately 10 to 15 minutes, checking thin pieces early. Insert the thermometer into the thickest part from the side. Remove each piece when it reaches 145 F. The flesh should also separate into moist flakes.
- While the fish bakes, toss cabbage, carrot, and scallions with 2 tablespoons lime juice, 2 teaspoons oil, and the remaining salt. Mix yogurt with its tablespoon of lime juice and tablespoon of water.
- Warm tortillas in a dry skillet for about 20 to 30 seconds per side, or follow the package directions. Stack inside a clean towel so they stay pliable.
- Break cooked fish into large flakes using clean utensils. Divide between tortillas, add a small handful of slaw, drizzle with yogurt sauce, and finish with optional cilantro. Serve remaining slaw alongside.
Fish Doneness and Tortilla Texture
Fish thickness, starting temperature, and oven performance all affect cooking time. Do not remove fish solely because the timer rings or the surface changes color. The FDA seafood safety guidance recommends 145 F. Avoid piling fish pieces on the tray, since overlapping areas cook unevenly.
If tortillas crack, they may need a little more warming. Do not overload them with wet slaw. Lift slaw from its bowl with tongs so excess dressing stays behind. A double layer of very thin corn tortillas can offer support, but it requires 16 tortillas rather than the eight listed.
Substitutions and Serving Options
Flour tortillas can replace corn tortillas by count. Use shredded romaine instead of cabbage only if serving immediately, since it wilts faster. Plain plant yogurt can replace dairy yogurt; choose an unsweetened variety with a neutral flavor. Replace smoked paprika with sweet paprika for a less smoky fish coating. For extra richness, divide one sliced avocado among the tacos without changing the cooking method.
Storage and Reheating
Store fish, slaw, sauce, and tortillas separately. Refrigerate perishables promptly at 40 F or below, within 2 hours, or 1 hour above 90 F. Use fish within 3 days and dressed slaw within 2 days for texture. Reheat only the fish, covered, to 165 F before assembling fresh tacos. Discard food left out beyond the safe window; reheating does not correct improper storage. See USDA leftover guidance.
