This is delicious! Followed the recipe pretty closely, but I doubled the amount of garlic. Didn't have a bell pepper but I think it's fine without it. My only problem was with the yogurt, I only had Greek yogurt so I used that and it did curdle, but I think it was my fault as I put it in the pot too fast. Next time I'll try to be more patient. I wouldn't leave it out though, I think the yogurt gives the soup its richness.