Pre-heat the oven to 200C/400F.
Put the oil, chicken chunks, peppers and onions onto a large baking tray. Mix the fajita seasoning ingredients in a small bowl and sprinkle over. Mix thoroughly with clean hands.
Bake for 20-25 minutes until the chicken is cooked through and the peppers are starting to blacken at the edges.
Serve with the accompaniments and let everyone dig in and build their own fajitas.
Did you make this recipe? Click here to let us know how it went and give it a ⭐️ rating! Your feedback helps us to make more recipes you really want.