Chickpea, tomato & spinach curry

Name: Chickpea, tomato & spinach curry
Prep time: 15 min
Cook time: 40 min
Total time: 55 min
Cuisine: Indian
Ingredients: 1 onion, chopped; 2 garlic cloves, chopped; 3cm piece ginger, grated; 6 ripe tomatoes; ½ tbsp oil; 1 tsp ground cumin; 2 tsp ground coriander; 1 tsp turmeric; pinch chilli flakes; 1 tsp yeast extract (we used Marmite); 4 tbsp red lentils; 6 tbsp coconut cream; 1 head of broccoli, broken into small florets; 400g can chickpeas, drained; 100g bag baby spinach leaves; 1 lemon, halved; 1 tbsp toasted sesame seeds; 1 tbsp chopped cashews, to mix with the sesame seeds