Saute lamb in oil until well browned. Add onions, carrots, daikon and peppers. Saute for 10 minutes. Add potatoes and saute for 5 minutes. Add tomatoes and stir well. Add coriander, cumin, garlic, cayenne and bay leaf. Sprinkle with salt and pepper. Add stock and bring to a boil. Cover and simmer for 45 minutes. Add vinegar and pasta. Simmer until the pasta is warmed through. Sprinkle soup with parsley and cilantro and serve.