Creating delicious Spicy Chicken Tacos is simple when you follow these easy steps:

1. Prepare the Chicken: Cut the chicken into bite-sized pieces and set aside.
2. Mix the Spices: In a mixing bowl, combine chili powder, cumin, garlic powder, onion powder, smoked paprika, salt, black pepper, and cayenne pepper.
3. Season the Chicken: Toss the chicken pieces in the spice mixture, ensuring they are well-coated.
4. Heat the Oil: In a skillet, heat olive oil over medium-high heat until shimmering.
5. Cook the Chicken: Add the seasoned chicken to the skillet. Cook for 6-8 minutes, stirring occasionally, until the chicken is cooked through and slightly crispy on the edges.
6. Warm the Tortillas: In a separate pan or on a grill, warm the tortillas for about 30 seconds on each side.
7. Assemble the Tacos: Place a generous amount of the cooked chicken in each tortilla. Top with shredded lettuce, diced tomatoes, onions, and cheese.
8. Garnish and Serve: Add fresh cilantro if desired and serve with lime wedges on the side.

These straightforward steps will guide you to create mouthwatering Spicy Chicken Tacos that will impress everyone at your table.