Mexican tortilla stack

Ingredients

• 1 tablespoon vegetable or olive oil
• 2 cloves garlic, crushed
• 1 medium red onion, finely chopped
• 1 small capsicum, finely chopped
• 2 400g can diced tomatoes
• 35 gram packet taco seasoning mix
• 1/2 large barbecued chicken, skin and bones removed, meat shredded
• 4 jumbo wraps
• 1 cup grated tasty cheese
• 125 gram can corn kernels, drained
• 2 medium tomatoes, finely chopped
• 1/4 cup chopped coriander
• sour cream, to serve