Preheat air fryer to 400°F.
Pat 1 pound cod dry with paper towels and cut into ½-inch thick strips about 2 inches long.
Mix together ¼ cup all-purpose flour, ¼ cup yellow cornmeal, and 2 Tablespoons chili seasoning in a medium bowl until well combined.
Using a fork, place a piece of cod in the seasoning mixture to coat evenly on all sides. Place seasoned cod on a parchment lined baking tray in a single layer. Continue coating each piece of cod in this manner until all cod is coated evenly on all sides. Discard any excess seasoning mixture.
When the air fryer is preheated, spray basket with oil and use tongs to carefully place seasoned cod in the air fryer basket in a single layer and not touching. Spray with oil spray to coat each piece of fish.
Cook in the preheated air fryer for 5-6 minutes until golden brown. If needed, continue cooking any remaining fish in a separate batch.
Using tongs, carefully remove fish to a serving plate.
Place 6 small flour tortillas in the air fryer basket in a stack and put a weighted, heat proof item, such as a ramekin, on top to hold them down. Air fry at 400°F for 1-2 minutes, or until heated to your liking.
To assemble fish tacos, top warm tortillas with shredded cabbage, mango pico de gallo, and crispy fish. Garnish with cilantro and a generous drizzle of creamy fish taco sauce. Squeeze fresh lime juice onto tacos if desired. Enjoy!