I had to make a few substitutions to the recipe because i used curry paste instead of the garam massala and curry powder. I also used the swiss card stems (chopped up). the flavours are wonderful.
There is one major change i would make to the instructions. The sweet potatoes cooked to a mush because they took less time to cook than the lentils. Next time, i will start the lentils 15 minutes before adding the potatoes.