For each tortilla, add ½ cup of Monterey Jack cheese to the middle of the tortilla and roll to form a tight enchilada. Place the enchiladas on a sheet tray lined with parchment paper and bake for 10 minutes.
Meanwhile, in a sauce pan over medium heat, mix the heavy cream, sour cream, and cream cheese together until melted and well blended. Stir in the diced green chilies and dip mix.
Pour the sauce over the heated enchiladas and garnish with chopped green onions.