Cut chicken breasts into thin strips. In a bowl, mix chili powder, cumin, paprika, salt, and pepper. Toss chicken with spice mixture until well coated.

Heat olive oil in a skillet over medium heat. Add chicken strips and cook for 6-8 minutes until thoroughly cooked and slightly charred.

Warm the corn tortillas in a dry skillet or microwave. Assemble the tacos by placing cooked chicken onto tortillas and topping with fresh lettuce, diced tomatoes, and shredded cheese.

Serve immediately with lime wedges and your favorite hot sauce.