Preheat a large sauté pan over medium heat. Add a drizzle of oil and add the chicken pieces and sprinkle with the spice mix. Cook stirring for 4-6 minutes depending on the size of the chicken pieces.
Then, add the peppers, chilli, onions, garlic. Continue to sauté for 2-3 minutes until just cooked through and the vegetables are just softened.
Remove from the heat, spoon some tomato salsa and toss to combine. drizzle over the lime and check the seasoning for spices, salt and pepper.
Serve in warm tortillas with a spoon full of sour cream on the tortilla, grated cheese and fresh coriander leaves.