"Create a savory pumpkin recipe for one person, not curry and not sweet. The user is considering risotto or soup and has leeks, onion, carrot, and other ingredients available. Make it a balanced, flavorful pumpkin and leek soup with optional risotto-style serving suggestion if appropriate, but keep the main recipe as soup. Use metric units, average cooking time, and home-cooked ingredients with no ultra-processed shortcuts. Include a rich but not heavy flavor profile, suitable for an advanced home cook, and use common pantry ingredients plus pumpkin, leek, onion, and carrot."