Step 1: Prepare the Seasoning Mix

1. In a small bowl, combine the following spices: smoked paprika, cumin, garlic powder, chili powder, onion powder, salt, and black pepper.
2. Divide the seasoning mix into two equal portions: one for the chicken and one for the vegetables.

Step 2: Cook the Chicken

1. If using uncooked chicken, season it with one portion of the spice mix.
2. Heat a skillet over medium heat with a drizzle of olive oil.
3. Cook the chicken until golden and fully cooked. Remove it from the skillet, let it rest for a few minutes, and shred or dice it.

Step 3: Sauté the Vegetables

1. In the same skillet, heat another tablespoon of olive oil.
2. Add sliced onions, bell peppers, and mushrooms (if using).
3. Sprinkle the remaining seasoning mix over the vegetables and sauté until softened and slightly caramelized.
4. Remove the vegetables from the skillet and set aside.

Step 4: Assemble the Quesadillas

1. Lay a tortilla flat on a clean surface.
2. Sprinkle a layer of shredded cheese on one half of the tortilla.
3. Add the cooked chicken and sautéed vegetables on top of the cheese.
4. Sprinkle an additional layer of cheese over the filling.
5. Fold the tortilla in half, pressing gently to seal.

Step 5: Cook the Quesadillas

1. Heat a clean skillet or griddle over medium heat.
2. Add a small amount of butter or oil to the pan for crispiness.
3. Place the folded quesadilla in the skillet and cook for 2-3 minutes on each side, or until golden brown and the cheese is fully melted.
4. Repeat with the remaining tortillas.

Step 6: Serve and Enjoy

1. Remove the quesadilla from the skillet and cut it into triangles using a pizza cutter or sharp knife.
2. Serve immediately with sour cream, salsa, guacamole, and garnishes like cilantro and lime wedges.

Pro Tips

• Use medium heat to prevent the tortillas from burning while allowing the cheese to melt evenly.
• Keep cooked quesadillas warm in a 200°F oven while preparing the rest.
  Enjoy your crispy, cheesy, and flavorful chicken quesadillas!