In a medium bowl, combine the tilapia strips, olive oil, garlic, cumin, chili powder, paprika, oregano, salt, pepper, and cayenne pepper. Mix until the fish is well-coated with the spices. Cover the bowl and let it marinate in the refrigerator for at least 15 minutes.
Heat a large skillet over medium-high heat. Once the pan is hot, add the marinated fish and cook for 5-7 minutes, stirring occasionally, until the fish is cooked through.
Remove the cooked fish from the skillet and place it in a bowl. Add the lime juice and cilantro to the fish and mix to combine.
To assemble the tacos, place a few strips of fish onto each warm corn tortilla. Sprinkle with the diced red onion and serve immediately.
Interesting Facts
Fish tacos al Pastor is a popular dish in Mexico.
The marinade for the fish contains a combination of spices that are commonly found in Mexican cuisine.
The dish is typically served with warm corn tortillas.