Step 1

Preheat oven to 350 F. Line a baking sheet with foil, and spray the foil with nonstick spray. Place chicken breasts on top of foil, spread 1/2 cup BBQ sauce over the tops. Use a spoon or hands to spread around and coat the chicken with sauce. Sprinkle onions over the top of the chicken. Place in oven and bake for 20 minutes or until cooked through.

Step 2

Remove from oven and shred chicken with 2 forks. Place shredded chicken and onions into a bowl and add 1/2 cup BBQ sauce, mix until evenly coated.

Step 3

Lay out 5 whole wheat tortillas, spread chicken mixture on half of the tortillas, then place sliced pineapple on top of the chicken, then sprinkle cheese on top of the pineapple. Add about a tablespoon of BBQ sauce to the other side of the tortillas, then close them up by bringing the side coated in BBQ sauce over the side with the chicken mixture, pineapple, and cheese.

Step 4

Heat a skillet or grill pan over medium heat and spray with non stick spray. Place the quesadillas down on the pan, and cook for 2-3 minutes, or until browned. Flip and cook on the other side for 1-2 minutes or until browned. [i]*Careful, they tend to cook fast on the second side[/i]. Repeat these steps until all quesadillas are cooked.

Step 5

Slice, top with cilantro (optional), and serve.