Heat oil in a large, deep frying pan and add the onion.
Stir in the garam masala, turmeric and cinnamon, and cook over a low heat for 5-10 minutes.
Add the garlic and chilli, and cook for 1 minute.
Add the tomatoes and coconut milk and stir to combine.
Simmer for about 10 minutes before adding the cooked lamb and chickpeas.
Simmer for a further 10 minutes.
Meanwhile, cook the rice and the frozen beans in separate pans to pack instructions. Serve the curry with the rice, green beans and yogurt on the side.
For the Garam Masala
Ingredients:-
1tablespoon ground cumin
1.5teaspoons ground coriander
1.5teaspoons ground cardamom
1.5teaspoons ground black pepper
1teaspoon ground cinnamon
0.5teaspoon ground cloves
0.5teaspoon ground nutmeg
Method:-
Mix cumin, coriander, cardamom, pepper, cinnamon, cloves, and nutmeg in a bowl.
Place mix in an airtight container, and store in a cool, dry place.