Use soup to cook noodle, you can add natural ingredients with strong flavour and try
Sweet: pumpkin, corn, apples, tomato, chestnuts, peas
Things that can enhance taste: mushrooms, meat, fish, scallops, prawns, leek, spring onions, onion, garlic, plain seaweed
Flavouring: I add just little bit of soy sauce (without msg), very little salt is usually enough.