Add a few drops of sesame oil, sesame seeds are also nice
Add a tiny splash of mirin, sake, or rice vinegar
Use stock for the liquid, or add miso paste, or mushroom powder
Rehydrate a pinch of wakame while you cook to add at the end
Experiment with condiments: soy sauce, teriyaki, hoisin, chili oils, etc.
Anything that’s going to add healthy ingredients is probably going to bump you up over 10 minutes. If you’re willing to do that, saute some stuff in the pan before you cook the noodles. I’ve done chicken, pork, mushrooms, bok choy, leeks. It’s a bit more effort for a big improvement.