2–3 medium courgettes (about 440g/15½oz), trimmed and cut into roughly 6cm/2½in sticks
1 medium onion, cut into thin wedges
2 peppers, any colour, deseeded and thinly sliced
ground black pepper
2 tbsp fajita seasoning mix from a packet (see recipe tip)
3 tbsp vegetable oil
8 soft tortilla wraps
150ml/¼ pint soured cream or crème fraîche