Preheat oven to 375 degrees. Fit parchment paper on a large sheet pan. Place a small bowl in center of pan. Set aside.
Add cooking oil in a medium skillet over medium heat. Stir in red pepper, jalapeno, & red onion and cook until softened. (2 minutes)
Place chopped cooked chicken, cooked vegetables (red bell pepper, jalapeno, & red onion), and 1 cup taco sauce into a medium bowl and mix well.
Cut tortillas in half creating 20 semi circles. Place a half tortilla on work surface and spread 1-2 TBS of chicken mixture in center of tortilla. Sprinkle with 1 TBS of shredded cheese.
Roll tortilla from tip to tip creating a cone shape. Place onto prepared sheet pan between the small bowl and edges of sheet pan. Make 9 more filled cone shaped tortillas and place around bowl.
Sprinkle 1/2 cup of shredded cheese all over the 10 cone shaped filled tortillas.
Create the rest of the 10 filled cone shaped tortillas and place on top of the 1st layer in between. Sprinkle remaining cheese all over the 2nd layer.NOTE: You can create some of these with only cheese instead of all meat mixture. Remove center bowl. Place pan in preheated oven for 10-15 minutes until cheese has melted and tortillas are slightly browned and crispy.
Remove from oven. Place bowl back into center of pan and fill with remaining taco sauce. Sprinkle chopped cilantro all over the quesadillas and taco sauce. Enjoy
