Grilled courgette, bean & cheese quesadilla

Name: Grilled courgette, bean & cheese quesadilla
Prep time: 10 min
Cook time: 20 min
Total time: 30 min
Cuisine: Mexican
Ingredients: 1 onion, finely chopped; 4 tsp olive oil; 4 garlic cloves, finely chopped; 2 tsp ground cumin; 1 tbsp tomato purée; 400g can pinto bean, drained and rinsed; 3 courgettes, sliced on the diagonal; 175g cheddar, grated; 1 green chilli, finely chopped; large handful coriander, roughly chopped; 8 flour tortillas