Spiced chickpea & potato fry-up

Name: Spiced chickpea & potato fry-up
Prep time: 10 min
Cook time: 20 min
Total time: 30 min
Cuisine: Indian
Ingredients: 300g potato , cut into small pieces; 2 onions , sliced; 2 garlic cloves , crushed; 1 tsp olive oil; 1 tsp each ground coriander , turmeric and mild chilli powder; 1 tbsp cumin seeds; 410g tin chickpea , drained and rinsed; 2 tbsp tomato purée; 200g baby spinach; small bunch coriander , leaves chopped; wholemeal chapatis , low-fat natural yogurt and mango chutney, to serve