Prepare the Chicken:

• In a bowl, toss the diced chicken with the Cajun seasoning until evenly coated.
• Heat the olive oil in a large frying pan over medium-high heat. Add the seasoned chicken and cook for 5-7 minutes, or until fully cooked and no longer pink in the middle. Remove the chicken from the pan and set aside.

Cook the Vegetables:

• In the same pan, add the diced red and green bell peppers and the red onion. Cook for 4-5 minutes, or until the vegetables are softened. Remove from the pan and set aside.

Assemble the Quesadillas:

• Heat a large non-stick frying pan over medium heat. Place one tortilla in the pan.
• Sprinkle a layer of cheddar and mozzarella cheese over half of the tortilla.
• Add a portion of the cooked chicken and vegetables on top of the cheese.
• Sprinkle another layer of cheese over the chicken and vegetables, and then fold the tortilla in half.
• Cook for 2-3 minutes on each side, or until the tortilla is golden brown and the cheese is melted.

Serve:

• Repeat the assembly and cooking process with the remaining tortillas and filling.
• Cut each quesadilla into wedges and serve with sour cream, salsa, and guacamole if desired.