In the morning, add chicken and salsa to a crockpot and cook on low for the day.
Once cooked, shred the chicken with two forks.
Remove chicken from crockpot and place in a large mixing bowl. Add 4 oz of softened cream cheese and a few dashes of onion powder, cumin, salt, and black pepper.
Stir together until well combined.
Preheat oven to 350 degrees.
Put one tablespoon olive oil in a skillet on the stovetop and heat on low. Once the skillet is warm, place one corn tortilla in the skillet at a time and heat on both sides about 30 seconds.
Add two tablespoons (approximately) of the chicken mixture onto a warmed corn tortilla and roll up. Place seam-side down into a greased 9x13 baking dish. Continue until your baking dish is full.
In a separate bowl, add cream of chicken soup, sour cream, milk, and green chilies.
Whisk together until smooth.
Pour the sour cream sauce over the enchiladas.
Bake in the oven at 350 for 35 minutes.
Remove the enchiladas and top with shredded cheddar cheese. Place back in the oven and broil on high for a few minutes until the cheese is melted. Remove and enjoy!