1. Preheat oven to 350 degrees. In a bowl, combine the sour cream, evaporated milk, taco seasoning and cheese. Reserve 2/3 of this mixture for topping enchiladas. Mix the remaining 1/3 of the sour cream/cheese mixture with all remaining ingredients except for the tortillas.
2. Spray a 9x13 baking dish with nonstick spray. Fill each tortilla with about 1/4 cup of filling, roll and place in pan (don’t bother folding ends).
3. Once all tortillas are in the pan, completely cover the enchiladas with the reserved topping. Cover with foil and bake for 35 minutes at 350 degrees.
4. You can make the enchiladas a day in advance. Bake about an extra 10 minutes to heat all the way through before serving..