Prepare the Seasoning : In a small bowl, combine all dry ingredients (chili powder, cumin, paprika, garlic powder, onion powder, oregano, black pepper, and salt). Mix well until evenly blended.
Season the Chicken : Cut boneless, skinless chicken breasts or thighs into bite-sized pieces. Coat them generously with the seasoning mixture, ensuring each piece is fully covered.
Marinate (Optional) : Let the seasoned chicken rest for 10 minutes to allow flavors to meld.
Cook the Chicken : Heat a tablespoon of oil in a large skillet over medium-high heat. Add the seasoned chicken and cook until golden brown and cooked through, about 5–7 minutes.
Assemble Tacos : Serve the chicken in warm tortillas with your favorite toppings like shredded lettuce, diced tomatoes, cheese, avocado slices, and salsa.