INGREDIENTS
1 tbsp. extra-virgin olive oil
2 bell peppers, thinly sliced
1/2 onion, thinly sliced
Kosher salt
Freshly ground black pepper
1 lb. boneless skinless chicken breasts, sliced into strips
1/2 tsp. chili powder
1/2 tsp. ground cumin
1/2 tsp. dried oregano
4 medium flour tortillas
2 c. shredded Monterey jack
2 c. shredded cheddar
1 avocado, sliced
1 tbsp. vegetable oil
2 green onions, thinly sliced
Sour cream, for serving

 Chicken Quesadilla

DIRECTIONS
1.    In a large skillet over medium-high heat, heat olive oil. Add peppers and onion and season with salt and pepper. Cook until soft, 5 minutes. Transfer to a plate. 
2.   Heat remaining tablespoon vegetable oil over medium-high heat. Season chicken with spices, salt, and pepper and cook, stirring occasionally, until golden and cooked through, 8 minutes. Transfer to a plate. 
3.   Add 1 flour tortilla to skillet and top half of the tortilla with a heavy sprinkling of both cheeses, cooked chicken mixture, pepper-onion mixture, a few slices of avocado, and green onions. Fold the other half of the tortilla over and cook, flipping once, until golden, 3 minutes per side. Repeat to make 4 quesadillas. 
4.   Slice into wedges and serve with sour cream. 

source : www.delish.com