Place the chicken into a bowl, the vegetables into another, and the black beans into a third.
In a jug or bowl, mix the Santa Maria Fajita Seasoning with the oil, stir to combine.
Pour half of it the mixture over the chicken.
Pour three quarters of the remaining mixture over the vegetables, and the final quarter over the black beans.
Mix the seasoning well amongst the individual bowls of ingredients.
Add the chicken to a very hot pan, and cook for 5 - 7 minutes until cooked through.
Meanwhile, in another hot pan, cook the vegetables for 3-4 minutes, and in a final pan, gently fry the black beans until warmed through, 2-3 minutes.
Alternatively, you could cook everything together in one big pan.
Warm the tortillas according to the package instructions. Transfer to a plate.
Transfer the cooked chicken, vegetables and beans to warmed serving dishes, and place in the middle of the table for everyone to help themselves.
Serve the chicken, vegetables and black beans with Santa Maria salsa, guacamole and sour cream (optional), and let everyone construct their favourite combinations!
You can also wrap the fajitas using lettuce leaves instead of tortillas if you wish.