Combine together ground cumin, onion powder, dried oregano, paprika, ground black pepper and cayenne pepper in a small bowl. Set aside.
Filling:
Place chicken in a bowl. Add spice mix. Toss to coat. Season with salt and pepper. Cover and store in refrigerator until ready to use.
Meanwhile, heat 1 tablespoon oil in a medium frying pan over medium-high heat. Add bell peppers (capsicum), onion and garlic. Season with salt and pepper. Cook, stirring occasionally, for 4-5 minutes or until the vegetables are tender. Transfer to a plate.
Add the remaining 1 tablespoon oil to the pan. Add chicken. Cook, stirring occasionally, for 7-8 minutes or until cooked through. Transfer to a plate.
Make chicken quesadillas:
Wipe pan clean with a paper towel.
Add 1 teaspoon oil. When hot, place one tortilla in the pan. When one side is warm, flip over to warm the other side. Top half of tortilla with vegetables, chicken and ¼ cup cheese (cheddar and Monterey Jack). (I used mozzarella in this recipe).
Fold other half of the tortilla over and cook 3 minutes on each side until the tortilla is crispy, golden and the cheese has melted through.
Transfer to a cutting board. Cut in halves.
Serve with your favorite salsa or dip.
Video
Notes
Large burrito style tortillas hold more filling. However, you can substitute them with corn tortillas for a gluten free version.