Steps
1. Slice the chicken breast into thin strips.
2. In a bowl, mix chili powder, cumin, salt, and pepper. Toss the chicken strips in the spice mix.
3. Heat olive oil in a skillet over medium heat. Cook chicken strips until fully cooked and slightly browned, about 5-7 minutes.
4. Warm the corn tortilla in a separate pan for about 30 seconds on each side.
5. Assemble the taco by placing the cooked chicken strips on the tortilla.
6. Top with shredded lettuce, diced tomatoes, onions, cheese, sour cream, and salsa.
7. Serve immediately and enjoy your classic Mexican chicken taco.