Preheat oven to 375°F (190°C) and lightly grease a 9x13 inch baking dish.
In a large mixing bowl, combine softened cream cheese, sour cream, diced jalapeños, garlic powder, onion powder, and 1 cup of the shredded cheese until smooth.
Fold the shredded chicken and 1/4 cup of the green onions into the cream cheese mixture.
Spread 1/2 cup of the green enchilada sauce over the bottom of the prepared baking dish.
Spoon approximately 1/3 cup of the chicken mixture into each tortilla, roll tightly, and place seam-side down in the dish.
Pour the remaining enchilada sauce evenly over the rolled tortillas.
Sprinkle the remaining 1 cup of shredded cheese and the bacon bits over the top.
Bake for 25 to 30 minutes, or until the cheese is melted and the sauce is bubbling.
Let stand for 5 minutes and garnish with the remaining green onions before serving.