01 -  In a large bowl, thoroughly mix the shredded chicken with half of the cheddar cheese, diced onions, sour cream, cumin, salt, and pepper. 
 02 -  Spread a few spoonfuls of enchilada sauce evenly on the bottom of a large baking dish. 
 03 -  Spoon the chicken filling mixture onto each flour tortilla, roll tightly, and position seam-side down in the baking dish. 
 04 -  Pour the remaining enchilada sauce over the arranged tortillas and sprinkle with the remaining cheddar cheese. 
 05 -  Cover the dish securely with aluminum foil and place in the freezer until ready to bake. 
 06 -  Preheat oven to 375°F (190°C). Bake the enchiladas covered for 30-40 minutes, then remove foil and bake an additional 10 minutes until the cheese is melted and sauce is bubbling. 
 07 -  Remove from oven and scatter fresh cilantro over the enchiladas just before serving.