Place onion (or spring onions), coriander stalks and roots into mixing bowl and chop 3sec/speed 7. Transfer into a bowl and set aside.
Place oil into mixing bowl and heat 3 mins/Varoma/speed2.
Add mustard seeds and cook1min/Varoma/rev/speed1.
Add chopped onion and coriander, a pinch of salt and cook 5mins/Varoma/speed 1.Next add curry leaves, cinnamon, cardamom and cook 2min/100deg/speed 1, without measuring cup.
Add tomato paste, ginge rpaste, garlic paste, chilli (if using), curry powder, turmeric & chilli powder 4min/100deg/speed 1, without measuring cup.
Add lamb and garam masala,cook 10mins/100deg/rev/speed soft.
Add salt to taste and water then cook 45mins/90deg/rev/soft speed.
Add baby spinach leaves if using, cover and set aside for 5mins.
Stir well, garnish with chopped coriander leaves and serve hot with roti or puri and raita.