Trim any excess fat from the chicken breasts.
Pat the chicken dry with paper towels.
In a small bowl, combine chili powder, cumin, garlic powder, onion powder, paprika, salt, and pepper until well mixed.
Drizzle olive oil over the chicken breasts and rub it in thoroughly.
Sprinkle the seasoning mix generously over both sides of the chicken.
Heat a large skillet over medium-high heat.
Add the seasoned chicken breasts and cook for 5-7 minutes on each side until golden brown and cooked through.
Let the chicken rest for a few minutes before slicing it into thin strips.
Grab warm tortillas and fill them with sliced chicken.
Add toppings like diced tomatoes, avocado slices, cilantro, or a squeeze of lime juice.