
Juicy, spiced fish fillets take center stage in these Cajun blackened fish tacos with avocado slaw. The fish gets a satisfying char and bold flavor from classic Cajun spices, while a creamy lime-splashed avocado cabbage slaw provides crunch and a cool finish. Everything comes together in warm tortillas for a meal that is both lively and crowd-pleasing.
I first cooked these tacos for a backyard get-together during a summer heat wave. The bold Cajun spices woke up our palates and the avocado slaw cooled things down. Now they always remind me of bright sunshine and laughter around the table.
Ingredients
- White fish fillets such as tilapia, cod, or snapper: This is the star of the show Choose fillets that are firm and smell fresh with no fishy odor
- Olive oil: Helps the spices adhere and adds richness Seek out extra virgin for best flavor
- Cajun seasoning: Delivers smoky heat and punch Mix with other spices or buy a quality brand for authentic flavor
- Smoked paprika: Deepens color and lends sweet warmth Use Spanish smoked paprika for a fuller taste
- Garlic powder: Rounds out the spice profile Opt for a fresh bottle with fine texture
- Salt and black pepper: Key for balance and flavor enhancement Use fresh cracked black pepper
- Green cabbage: Provides a crisp bite and structure Choose dense heads with bright leaves
- Purple cabbage: Adds color and another layer of crunch Select for deep color and freshness
- Carrot: Brings subtle sweetness and extra texture Look for firm, bright orange carrots
- Ripe avocado: Makes the slaw creamy and satisfying Look for just-yielding fruit without brown spots
- Plain Greek yogurt or sour cream: Gives body and tang to the slaw Use whole milk yogurt for creaminess or dairy-free alternative
- Lime juice: Lifts everything with citrus brightness Use fresh limes and squeeze right before mixing
- Fresh cilantro: Offers herbal top notes and color Select bright green stems without yellowing
- Honey or agave syrup: Binds the slaw and adds a touch of sweetness Local honey or pure agave is best
- Tortillas: The vessel for everything Warm corn or flour works great Look for pliable tortillas at your bakery or store
- Lime wedges: Adds extra zing when serving Always use fresh for best flavor and juiciness
- Extra chopped cilantro: Finishes the tacos and enhances aroma
Instructions
- Prep the Fish:
- Pat the fish fillets dry thoroughly using paper towels to remove any excess moisture Cut each fillet into strips about two inches wide so they cook evenly Place the strips in a shallow dish and add olive oil Cajun seasoning smoked paprika garlic powder salt and black pepper Toss everything together gently until all pieces are coated in spice mixture Let the fish marinate at room temperature while you make the slaw which should take about ten minutes This short marinade ensures deep flavor without over-softening the fish
- Make the Avocado Slaw:
- In a large mixing bowl start by combining shredded green cabbage shredded purple cabbage and grated carrot These vegetables provide the crisp base for your slaw Dice the avocado just before adding to prevent browning Add plain Greek yogurt or sour cream lime juice chopped cilantro honey salt and pepper Gently toss everything together using a large spoon being careful not to mash the avocado too much The slaw should look creamy yet textured Taste for seasoning and add more lime or honey as needed Cover the bowl and refrigerate to keep cold until serving The chill helps the flavors meld and the cabbage retain crunch
- Cook the Fish:
- Heat a large nonstick or cast-iron skillet over medium-high until it is sizzling hot Place the marinated fish strips into the pan in a single layer without crowding them Let them cook undisturbed for about two to three minutes per side You are looking for a deep blackened crust and opaque centers Use tongs to carefully flip the fish to avoid breaking it Once cooked through transfer fish to a plate and cover it loosely with foil or a clean towel to keep it warm until assembly
- Assemble Tacos:
- Take your freshly warmed tortillas and place a few pieces of blackened fish in each Top the fish generously with creamy avocado slaw Using your hands or a spoon distribute the slaw equally so every bite gets maximum flavor Sprinkle extra chopped cilantro over each taco for a fresh hit Add a wedge of lime to each plate for squeezing at the table Serve tacos immediately while everything is still warm

These tacos remind me of childhood beach vacations My favorite part has always been the creamy avocado slaw because it cools the spices just right Plus my family always fights over who gets the last spoonful
Storage Tips
Tacos are best freshly made but you can store leftover blackened fish and avocado slaw separately in airtight containers Refrigerate both for up to two days When ready to serve gently reheat the fish in a skillet over low heat and re-stir the slaw to refresh the texture Always keep tortillas separate to avoid sogginess
Ingredient Substitutions
If you cannot find good white fish try shrimp or skinless chicken strips for a similar flavor profile For yogurt or sour cream dairy free alternatives such as coconut yogurt or vegan mayo work well To keep gluten free use corn tortillas and check your spice mix for additives
Serving Suggestions
I like to serve these tacos with watermelon salad or a quick black bean salsa They pair perfectly with crisp lagers or a citrusy white wine Set up a taco bar at parties for everyone to build their own with toppings like jalapeno slices crumbled cheese or extra cilantro
Cultural Backdrop
Cajun cuisine is known for its bold use of spices and blackening technique which comes from Louisiana tradition This recipe combines the soul of Southern cooking with the fresh feeling of California style tacos making it a crossover loved by many regions
Seasonal Adaptations
In cooler months replace cabbage with shaved Brussels sprouts for a wintery twist During summer you can grill the fish outdoors for extra smokiness Add fresh corn or diced tomatoes to the slaw during peak season for more color and sweetness
Success Stories
Every time I serve these at gatherings they disappear fast Kids especially seem to love assembling their own which always creates a festive atmosphere For potlucks I triple the batch and use bite sized tortillas as party sliders
Freezer Meal Conversion
You can freeze uncooked seasoned fish for up to one month Thaw overnight in the fridge before cooking The slaw does not freeze well but you can pre-shred the cabbage and carrot and freeze for later assembly Make sure to use fresh avocado and yogurt right before serving

These tacos are a flavorful and fun meal that brings excitement to any table. Their vibrant colors and bold tastes make them a guaranteed hit for both families and friends.
Frequently Asked Questions
- → What type of fish works best for these tacos?
Firm, mild white fish such as tilapia, cod, or snapper hold their shape well and readily absorb the Cajun spices, yielding juicy, flavorful results.
- → How can I make this dish gluten-free?
Simply use corn tortillas and ensure your Cajun seasoning contains no hidden gluten. Always double-check labels for allergens.
- → What can I substitute for dairy in the avocado slaw?
Swap Greek yogurt or sour cream with plant-based yogurt alternatives, or omit completely for a lighter, dairy-free option.
- → Can I use other proteins instead of fish?
Absolutely! Shrimp or thinly sliced chicken cooked with the same seasoning offer delicious alternatives in these tacos.
- → How do I control the spice level?
Adjust the amount of Cajun seasoning and smoked paprika to your taste, or add a pinch of cayenne for extra kick.
- → What beverages pair well with this dish?
Crisp lagers or citrusy white wines complement the spicy, fresh flavors well. Try with lime-infused sparkling water for a non-alcoholic option.