Smoky blackened fish, crunchy cabbage slaw, and fresh mango salsa make these fish tacos bright, flavorful, and perfect for summer dinners.
These Blackened Fish Tacos are one of those meals that feel fresh and light while still being incredibly satisfying. Tender flaky fish is coated in bold blackened seasoning, then layered into warm tortillas with crunchy cabbage slaw and sweet mango salsa for the perfect balance of smoky, tangy, and fresh flavors. They’re easy enough for weeknights, but also make a fun taco bar for casual summer entertaining with friends and family.
If you’re feeding a crowd, set everything out taco-bar style so everyone can build their own tacos with their favorite toppings.
Why You’ll Love These Blackened Fish Tacos
- Fresh but bold flavor
- Easy weeknight dinner
- Great for taco bars
- Ready in about 30 minutes
- Works with cod, mahi mahi, or shrimp
What Kind of Fish Works Best
A mild, flaky white fish is the best choice for blackened fish tacos because it holds up well to the bold seasoning without tasting overly “fishy.” Cod is one of my favorites since it stays tender and moist while soaking up all those smoky spices beautifully.
- Cod: Mild, flaky, and easy to find. A great beginner-friendly option for fish tacos.
- Mahi Mahi: Slightly firmer with a meatier texture that grills especially well.
- Halibut: A little richer and firmer, but delicious if you want a more substantial taco.
- Tilapia: Budget-friendly and mild, though a bit more delicate than cod or mahi mahi.
- Shrimp: A quick-cooking option that works perfectly with the blackened seasoning and mango salsa.
- Salmon: Not traditional for fish tacos, but still delicious if you enjoy a richer flavor with smoky spices.
No matter which fish you choose, avoid overcooking it. The fish should flake easily with a fork while still staying moist and tender inside.
Tips for the Best Fish Tacos
- Don’t overcook the fish. Fish cooks quickly and can dry out fast. Remove it from the oven or grill as soon as it flakes easily with a fork and still looks moist inside.
- Use fresh lime juice. A squeeze of fresh lime right before serving brightens all the flavors and balances the smoky seasoning beautifully.
- Warm the tortillas first. Warm tortillas are softer, more flavorful, and less likely to crack or tear when filled. A quick toast in a dry skillet or directly over a gas flame adds even more flavor.
- Slice the cabbage very thinly. Thin cabbage gives the tacos crunch without feeling bulky or difficult to eat.
- Let the slaw chill for a few minutes. Even a short rest in the refrigerator helps soften the cabbage slightly and allows the flavors to come together.
- Use ripe mango for the salsa. Sweet, juicy mango balances the smoky blackened seasoning and adds freshness to every bite.
- Add avocado for creaminess. Fresh avocado helps mellow the spice and gives the tacos a creamy texture without feeling heavy.
- Grill the fish if possible. A few charred grill marks add even more smoky flavor and make these tacos especially good during summer grilling season.
- Set up a taco bar for gatherings. Place the fish, slaw, salsa, tortillas, and toppings in separate bowls so everyone can build their own tacos exactly how they like them.
This Fresh Mango Salsa is what really brings these tacos to life. Sweet mango, lime, jalapeño, and cilantro balance the smoky fish perfectly. Grab the full recipe here.
Serving Suggestions
These Blackened Fish Tacos are fresh and flavorful on their own, but they pair especially well with simple summer sides and fresh toppings.
- Fresh Mango Salsa adds sweetness and brightness that balances the smoky blackened seasoning perfectly.
- Classic Mexican Rice makes the meal a little more hearty and turns taco night into a full dinner spread.
- Sliced avocado or guacamole adds creamy texture and helps mellow the spice.
- Tortilla chips with extra mango salsa or guacamole are always a good addition for casual entertaining.
- A fresh fruit salad or watermelon on the side keeps the meal light and summery.
- For gatherings, set everything out taco-bar style so everyone can build their own tacos with their favorite toppings.
These Blackened Fish Tacos are colorful, fresh, and packed with bold flavor in every bite. Between the smoky seasoned fish, crunchy slaw, and sweet mango salsa, they’re the kind of easy summer dinner that feels a little special without requiring much effort. Whether you make them for a quick weeknight meal or a relaxed backyard taco night with friends, this is one recipe that always disappears fast.
Blackened Fish Tacos
Ingredients
- 1 pound white fish like Cod or Mahi Mahi
Blackened seasoning:
- 1 ½ Tbsp paprika
- 1 Tbsp garlic powder
- 1 Tbsp onion powder
- 1 Tbsp dried thyme
- 1 tsp black pepper
- 1 tsp cayenne
- 1 tsp dried basil
- 1 tsp dried oregano
- 1 tsp salt
Dressing and cabbage:
- 4 cups red or green cabbage thinly sliced
- 1 Tbsp mayonnaise
- 2 tsp cider vinegar
- ¼ tsp celery salt
- ¼ tsp sugar
- 6 corn or flour tortillas
Garnish:
- 2 cups fresh mango salsa
- fresh avocado slices
- jalapeños thinly sliced
- Olive oil or avocado oil to drizzle
Instructions
- Preheat oven to 350°F. Pat fish dry and place in an oiled baking dish.1 pound white fish
- In a small bowl, combine paprika, garlic powder, onion powder, thyme, black pepper, cayenne, basil, oregano, and salt. Rub seasoning generously over fish.1 ½ Tbsp paprika, 1 Tbsp garlic powder, 1 Tbsp onion powder, 1 Tbsp dried thyme, 1 tsp black pepper, 1 tsp cayenne, 1 tsp dried basil, 1 tsp dried oregano, 1 tsp salt
- Bake for 15–20 minutes, or until fish is opaque and flakes easily with a fork.
- While fish cooks, toss cabbage with mayonnaise, vinegar, celery salt, and sugar in a medium bowl. Refrigerate until ready to serve.4 cups red or green cabbage, 1 Tbsp mayonnaise, 2 tsp cider vinegar, ¼ tsp celery salt, ¼ tsp sugar
- Warm tortillas. Fill with cabbage slaw, blackened fish, mango salsa, avocado, and jalapeños.6 corn or flour tortillas
Notes
- Cod and mahi mahi are both excellent choices for these tacos because they stay tender and flaky while holding up well to the blackened seasoning.
- If your fish counter offers pre-seasoned blackened fish, feel free to use it for an even quicker dinner.
- Fish thickness will affect cooking time. Start checking for doneness around 15 minutes. The fish should flake easily with a fork while staying moist and tender inside.
- For extra smoky flavor, grill the fish instead of baking it. A few charred grill marks taste especially good with the mango salsa.
- Warm tortillas before serving for the best texture and flavor. A quick toast in a dry skillet or directly over a gas flame works well.
- Thinly sliced cabbage gives the tacos crunch without overpowering the fish. Either red cabbage, green cabbage, or a combination of both works great.
- The cabbage slaw can be made a few hours ahead and refrigerated until ready to serve.
- Fresh mango salsa adds the best flavor and texture, especially during summer when mangoes are sweet and juicy.
- Leftover fish is delicious tucked into salads, rice bowls, or wraps the next day.
- These tacos work especially well for casual entertaining because all the components can be prepped ahead and assembled just before serving.
Mango Salsa
Ingredients
- 2 cups chopped mangoes about 2 medium mangoes
- 1 cup chopped red bell pepper
- 1/2 cup fresh chopped pineapple optional
- 2 ⁄3 cup chopped green onion may substitute red onion
- 1 ⁄4 cup chopped fresh cilantro
- Juice from one lime
- 4 teaspoons olive oil
- 1 medium fresh jalapeno minced
Instructions
- Mix mangoes, pineapple, pepper, onion, cilantro, lime juice and olive oil together in large bowl.
- Add jalapeno to taste. Adding the ribs and seeds will make the salsa more hot, but even if you want this mild, add a couple ribs and at least 1/4 teaspoon of the seeds. This will not add too much heat and will bring all the flavors together.
- Refrigerate for at least 30 minutes before serving to allow all ingredients to marinade together.
- Refrigerate leftovers in an airtight container for up to a week.
Will repeat this in a heartbeat as my husband and all of our kids loved it as well. Thank you! I always know my family will be happy when I make your recipes!
Excellent recipe! Made with fresh catfish. My wife loved it and the salsa!
Tried it with salmon, and my husband said it was the best fish he’d ever had. That’s saying a lot since we have fish fairly often and the mango salsa was outstanding! I could eat the whole bowl by itself.
Wow Patty, this is great! Thanks for taking the time to send this great comment. It means more than you know!
I LOVE THIS RECIPE! I use it on Tilapia mostly. Turns our perfectly every time!
These are the happiest flavors of summer! Can’t wait to make them and will the warm weather to come sooner 🙂
Ooh these fish tacos look seriously so good.. You definitely have got me craving Mexican right now!
You are speaking my love language with these gorgeous tacos!
Lol, Right? Thanks Ali, I appreciate the compliment. We really love them at our house.