30-Minute Blackened Cod Fish Tacos

Prep: 15 minCook: 8 min6 servingsmediumTex-Mex
Blackened Cod Fish Tacos with Spiced Cabbage Slaw

Flaky cod fillets seasoned with a smoky paprika and cumin blend, pan-seared until blackened and tender. Served in warm flour tortillas with a crisp apple cider vinegar cabbage slaw, fresh avocado, and grape tomatoes. The bold spice rub creates a flavorful crust while keeping the fish moist inside. Perfect for casual dinners or weekend gatherings when you want restaurant-quality tacos at home.

Ingredients

6 servings
  • 1 ½ lb cod fish ((cut into 3 inch long fillets))
    mahi mahi1:1pescatarianfish-free

    firmer texture

    Full guide →
  • 1 ½ tsp smoked paprika
  • 1 tsp garlic powder
  • 1 tsp oregano
  • ½ tsp ground cumin
  • ½ tsp salt
  • 1 tsp black pepper
  • ¼ tsp cayenne pepper
  • 2 tbsp canola oil
    avocado oil1:1neutral

    higher smoke point

    Full guide →
  • 1 cup shredded green cabbage
  • 2 cups shredded red cabbage
  • 1 tsp salt
  • 2 tbsp olive oil
  • 1 tbsp apple cider vinegar ((can use lime or lemon juice, I just prefer vinegar for the cabbage slaw))
  • 2 ripe avocados sliced
  • 1 cup grape tomatoes ((or 1 cup diced tomatoes))
  • 1 jalapeño pepper chopped into small pieces
  • salsa verde for serving ((I used Stonewall brand, any salsa of your choice is fine))
  • lime wedges ((halves) and cilantro for serving)
  • 12 flour tortillas
    corn tortillas1:1gluten-free

    different texture

    Full guide →

Instructions

  1. 1

    Combine smoked paprika, garlic powder, oregano, cumin, salt, pepper and cayenne in small bowl

  2. 2

    Sprinkle spice mixture over fish fillets and rub to coat evenly

  3. 3

    Heat canola oil in large skillet over medium heat

  4. 4

    Cook fish until browned and firm, about 4 minutes per side

  5. 5

    Combine salt, olive oil and apple cider vinegar in large bowl

  6. 6

    Add cabbage and toss until evenly coated with dressing

  7. 7

    Warm tortillas in skillet

  8. 8

    Break cod into pieces

  9. 9

    Distribute fish evenly between tortillas

  10. 10

    Add cabbage slaw, avocado, tomatoes and top with salsa

  11. 11

    Garnish with cilantro and jalapeño if desired

Tips

Tip 1

Pat fish fillets dry before seasoning to ensure the spice rub adheres properly and creates a better crust.

Tip 2

Don't overcrowd the pan when cooking fish - work in batches if needed to maintain proper heat.

Tip 3

Make the cabbage slaw ahead of time to let flavors meld and cabbage soften slightly.

Good to Know

Storage

Refrigerate assembled tacos up to 2 hours. Store components separately up to 3 days.

Make Ahead

Season fish and make slaw up to 4 hours ahead. Cook fish just before serving.

Serve With

Serve immediately while fish is hot and tortillas are warm.

See pairing guide →

Common Mistakes

Watch

Use medium heat to avoid burning spices before fish cooks through

Watch

Don't press fish while cooking to prevent breaking apart

Substitutions

Gluten-Free Swaps

flour tortillas
corn tortillas1:1gluten-free

different texture

Full guide →

General Alternatives

cod
mahi mahi1:1pescatarianfish-free

firmer texture

Full guide →
canola oil
avocado oil1:1neutral

higher smoke point

Full guide →
Find more substitutions →

FAQ

Can I use frozen cod fillets?

Yes, thaw completely and pat very dry before seasoning. Frozen fish may release more moisture during cooking.

What if I don't have apple cider vinegar?

Substitute with lime juice or white vinegar at the same ratio for similar acidity in the slaw.

How long do leftover tacos keep?

Components keep separately 3 days refrigerated. Assemble fresh tacos as needed for best texture.