In a large mixing bowl, combine the shredded chicken, Greek yogurt, half of the mozzarella cheese, green bell pepper, corn, garlic powder, onion powder, cumin, chili powder, salt, and pepper. Mix until well combined.
Spread 1/2 cup of the green enchilada sauce evenly on the bottom of a baking dish.
Place 1/3 cup of the chicken mixture onto each whole wheat tortilla and roll them up tightly.
Arrange the rolled enchiladas seam-side down in the prepared baking dish.
Pour the remaining green enchilada sauce over the top of the rolled enchiladas, ensuring they are well covered.
Sprinkle the remaining mozzarella cheese over the sauce.
Cover the baking dish with aluminum foil and bake for 20 minutes. Then, remove the foil and bake for an additional 10 minutes, or until the cheese is bubbly and slightly golden.
Remove from the oven and let it cool for a few minutes before garnishing with fresh cilantro.