Make the Blackened Seasoning: In a small dish, combine the spices for the blackened seasoning (paprika, salt, garlic powder, onion powder, ground oregano, cayenne).
Prepare and Season the Fish: Slice the cod into 1-inch filets. Reserve 1 tablespoon of the blackened seasoning and pat the rest of the seasoning onto all sides of the fish filets. Let sit for 5 minutes.
Make the Sour Cream: In another small bowl, combine the sour cream, mayo, 1 tablespoon of lime juice, 1 tablespoon of reserved blackened seasoning, honey, and a pinch of salt. Stir to combine. Set aside.
Make the Slaw: In another small bowl, add the shredded cabbage, 1 tablespoon of lime juice, and salt to a dish and massage gently.
Make the Salsa: Add the diced mango, tomatoes, juice of 1 lime, red onion, cilantro, and salt to a bowl and stir to combine.
Cook the Fish: Add the avocado oil to a stainless steel pan, tilting the pan to coat evenly, and place a piece of parchment paper in the pan, coating on both sides with the avocado oil. Heat the pan over medium-high. Add the cod filets and cook for 3 minutes, flip gently, and cook for another 2 minutes then remove from heat.
Assemble the Tacos: Add guacamole, a cod filet, mango salsa, seasoned sour cream, and some cabbage to a corn tortilla. Enjoy!
Notes
It goes without saying that this pairs nicely with a margarita, a plate of chips and salsa, and extra mango salsa or guac if you have it!