Preheat oven to 325°F. Spray a 9x13 pan with cooking spray.
In a large bowl, combine cooked chicken, 1 cup of cheese, 1 can of diced green chiles, black beans, and cooked rice. Mix well.
Place a flour tortilla in one hand, and scoop 1-2 heaping scoops of the enchilada filling into the tortilla. Spread it evenly, vertically, along the tortilla. Roll it up well and place in the prepared 9x13" pan.
Continue filling and rolling until pan is full. Pour sauce over enchiladas, then top with remaining 2 cups of cheese.
Bake in preheated oven 15-20 minutes, until cheese is bubbling and/or golden brown.
Remove from oven and top with fresh cilantro and/or more lime juice. Enjoy!