Vegie quesadillas with hummus, yoghurt and chilli sauce recipe

Name: Vegie quesadillas with hummus, yoghurt and chilli sauce recipe
Cuisine: Mexican
Ingredients: 3 leeks; 3 capsicum, seeded and finely chopped; 1 large carrot, coarsely grated; 140g cheddar or Red Leicester cheese, grated; A few sprigs fresh soft herbs such as parsley, mint, coriander (optional); 8 large flour tortillas; 200g hummus; 1/2 tbs extra virgin olive oi; 1 lemon or lime; 1 fresh chilli, finely sliced (optional); 120g natural yoghurt; Chipotle chilli sauce, to serve (optional)