Preheat the oven to 350°F (175°C). Lightly spray a 13x9-inch baking dish with cooking spray.
Cook the frozen honey roasted sweet corn according to the package directions; drain if necessary and set aside.
In a medium bowl, combine 2 cups shredded cooked chicken, the cooked corn, 1 cup shredded Mexican blend cheese, and 1/2 cup green enchilada sauce. Stir until evenly mixed.
Spoon about 1/2 cup of the chicken-and-corn mixture down the center of each 6-inch flour tortilla. Roll each tortilla tightly and place seam-side down in the prepared baking dish.
Pour the remaining enchilada sauce evenly over the rolled tortillas. Sprinkle the remaining 1 cup of shredded Mexican blend cheese over the top.
Bake in the preheated oven for 15–20 minutes, until the enchiladas are heated through and the cheese is melted.
Serve hot topped with salsa, sour cream, and guacamole as desired.