Prepare the Filling: In a large mixing bowl, stir together the cream cheese, shredded Pepperjack cheese, and taco seasoning until everything is well combined. Then, gently fold in the shredded chicken, making sure it’s evenly coated with the tasty cheese mixture.
Fill the Tortillas: Divide the chicken mixture evenly among the flour tortillas. Tuck in the sides of each tortilla, then roll them up tightly to create a secure wrap.
Assemble in Baking Dish: Preheat the oven to 350°F (175°C). Lightly spray a 9×13-inch baking dish with cooking spray. Place the rolled tortillas seam-side down in the dish and spray the tops lightly with cooking spray to help them crisp up while baking.
Bake the Chimichangas: Bake in the preheated oven for 15 minutes. Then, carefully flip each chimichanga over and bake for another 15 minutes until they are golden and crispy.
Serve: Once they are baked, remove the chimichangas from the oven and let them cool for a few minutes. Serve hot with shredded cheddar cheese, chopped green onions, sour cream, and salsa.