In a shallow container, mix together all of the ingredients for the spice coating. Slice the chicken breast into thin strips horizontally. Add chicken to the container and stir to coat.
Place a large, nonstick frying pan over a medium heat and cook the chicken for four minutes on each side. Remove and set aside on a plate to rest.
Preheat the oven to 200°C fan bake.
To the same frying pan, add the capsicum, corn and spring onion. Cook while stirring for five minutes, until the capsicum starts to soften.
Add the cream cheese and sour cream. Mix until melted and combined. Turn the heat off, then add 100g of the grated cheese.
Shred the chicken with forks, then add to the pan along with any juices from the resting plate. Mix everything together and season to taste with salt and pepper.
In a large baking dish, add a couple of tablespoons of salsa and spread to coat the base.
Add 2 tortillas, then top with half of the chicken and cream cheese mixture, spreading it out to the edges. Add half of the tomato salsa, also spreading out to the edges.
Repeat step 8 with two more tortillas and the remainder of the chicken mix and salsa.
Top with 2 more tortillas, then scatter over the remainder of the grated cheese.
Bake for 20 minutes, then turn the oven to fan grill, and cook for five minutes until the cheese is golden and bubbling.
Remove from the oven and leave to sit for 10 minutes before serving with a side salad or steamed vegetables of your choice.