Somebody was requesting a lentil soup recipe without tomatoes. Here is the one I know. I made it last winter and I really liked it. The recipe says it's low-fat and the soup is definitely quick to throw together. I'm not sure if I used lime as stated or lemon, since I don't usually have lime at home, but do the rest of the ingredients. That's another good thing about this recipe; it uses storecupboard ingredients. I am already looking forward to prepare this soup again when it gets colder... You can use whatever curry paste you fancy. I used a korma paste. This soup freezes well, yet another advantage. I didn't use the yogurt, I tried it with the yogurt, but I preferred it without. However, I thought you might like it with that's why I didn't leave it out.