Come home to a warming bowlful of this filling, low-fat soup
2 tsp cumin seeds
large pinch chilli flakes
1 tbsp olive oil
1 red onion, chopped
140g red split lentils
850ml vegetable stock or water
400g can tomatoes, whole or chopped
200g can chickpeas or ½ a can, drained and rinsed (freeze leftovers)
small bunch coriander, roughly chopped (save a few leaves, to serve)
4 tbsp 0% Greek yogurt, to serve