In a large mixing bowl, combine the shredded chicken, softened cream cheese, sour cream, half of the shredded Monterey Jack cheese, diced jalapeños, garlic powder, onion powder, and a pinch of salt and pepper. Mix until well blended.
Warm the tortillas in a dry skillet over medium heat for about 20-30 seconds on each side or microwave them for about 30 seconds until soft.
Take a warm tortilla, spoon a portion of the chicken mixture into the center, roll it tightly, and place seam-side down in a greased 9x13 inch baking dish. Repeat for all tortillas.
Pour the green enchilada sauce evenly over the rolled tortillas.
Sprinkle the remaining shredded Monterey Jack cheese over the enchiladas.
Bake for approximately 25-30 minutes until the cheese is bubbly and golden brown.
Remove from the oven and let cool for about 5 minutes before serving.
Garnish with chopped cilantro and sliced green onions before serving.
Notes
Pair with zesty Mexican rice or a refreshing garden salad.