Used different ingredients.
things I added: mustards seeds before onion. ground cumin, coriander, cinnamon and vege stock in with tomatoes, plus a little tomato paste. I also added a wedge of lime while it was simmering. Didn't bother mashing potatoes and lentils, just added them into the onion mix, then used the blender. I also added about 3 tblspn of orange juice which worked nicely. Served it with a dollop of yoghurt, cinnamon infused rice and roti.