I chose to add some of the flavours to a sour cream dressing rather than put everything in the main thing
Method
Heat the oil and fry the onion for a few minutes then add the garlic and cook for another minute or so
Add the ground spices and fry for 30 seconds or so
Add the lentils and stir it all round then put enough water to cover plus about another half
Bring it to a simmer and watch it so it doesn't dry out. Top it up if you need to
It's done when the red lentils are a paste and the green ones are nice and tender
meanwhile crush the garlic into a paste with salt and finely chop a packet of fresh coriander and mix them into the sour cream