Season both sides with the Spanglish Asadero Birria Seasoning.
In a skillet, heat olive oil over medium-high heat.
Lay the filets in the skillet a couple at a time. NOTE: Be sure to not overcrowd the skillet.
Cook for 2-3 minutes without moving them, until the bottom is golden and crispy. Flip and cook for an additional 2-3 minutes, or until the fish reaches an internal temperature of 145 degrees.
Remove the cod from the pan and let it rest for a minute while you warm your tortillas.
Top tortillas with cod, mango salsa, avocado, a drizzle of crema and a squeeze of lime.