Vegan mushroom, chickpea and green lentil curry

Name: Vegan mushroom, chickpea and green lentil curry
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Cuisine: Asian, Indian
Ingredients: 2 onions (finely chopped); 4 big cloves garlic (finely chopped); 1 red chilli (diced finely); 1 thumb-sized piece of ginger (peeled and finely chopped); 2 carrots peeled and diced small; 1 tin green lentils (drained and rinsed); 1 tin chickpeas (drained and rinsed); 2 tbsp tomato puree; 1 litre vegetable stock; 2 large handfuls washed spinach (roughly chopped); 300 g chestnut mushrooms (chopped into quarters); salt and pepper to taste; Fresh coriander & lime to serve; Low calorie cooking spray/spray oil