Quick and easy Sri Lankan recipe for dhal and spinach curry

Name: Quick and easy Sri Lankan recipe for dhal and spinach curry
Cook time: 22 min
Total time: 22 min
Cuisine: Asian, Indian
Ingredients: 300g red lentils (washed); 600 mls water (up to a litre); 1 clove of garlic; 1 fresh green chilli (seeds removed); a pinch of fenugreek seeds; 1/4 tsp ground turmeric; 2 tbs vegetable oil; 1 tsp cumin seeds; 1 tsp mustard seeds; 1 dried red chilli crushed; 1 tsp Maldive fish flakes; a generous pinch of curry leaves; 1 red onion sliced; 1 clove of garlic, finely chopped; 1 cm fresh ginger, finely chopped; 100g spinach (chopped); salt to taste