Step 1
Preheat oven to 200°C. Lightly grease an 18cm x 37cm baking dish. Cut chicken into small pieces. Place in a bowl. Add dip, corn and chilli powder, if using, and stir to combine. Microwave the tortillas following packet directions and wrap in a clean tea towel to keep warm. Place 1 tortilla on a clean work surface. Spoon 1/3 cup of the chicken mixture along the middle of the tortilla. Roll up to enclose the filling. Place in the prepared dish. Repeat with the remaining tortillas and chicken mixture.
Step 2
Sprinkle cheddar over tortillas in the dish and spray with olive oil spray. Bake for 20 mins or until the cheddar melts and tortillas are golden and crisp.
Step 3
Meanwhile, combine the tomato, spring onion, avocado, coriander and lime juice in a bowl. Season. Sprinkle over enchiladas to serve, with dollops of sour cream.