In a 25 cm cast iron casserole* heat vegetable oil, add onion seasoned with a pinch of salt and sauté 3-4 minutes. Add the minced garlic, Turkish roasted pepper flakes and sauté for another 3 minutes.
Stir in tomato passata, paprika , dried oregano and sauté for 20-30 seconds. Immediately add the lentil,bulgur,rice, lemon juice & stock. Season with salt and pepper. Bring to a boil; cover the casserole halfway and then allow to simmer on a low heat about 30 -40 minutes or until the grains are tender.
Paprika oil. In a small pan heat vegetable oil, add paprika & roasted pepper flakes. Remove from the heat when paprika is about to bubble, set aside.
Using a blender or a hand blender, blend the soup to reach the desired consistency. Adjust salt and pepper.
Drizzle soup with paprika oil.
Serve hot with lemon wedges and more paprika oil.