There isn't enough info to diagnose correctly as both the recipe and your steps were not detailed enough.

Questions that would help clarify:

1. What noodles did you get? Dried, or refrigerated fresh noodles?

2. I assume you bought dried because you said you cooked the noodles for 6 minutes like the pack said. You didn't specify what you cooked them in. If just plain water, that is likely your culprit. The noodles absorb plain water and taste, plain. Remember the Italian rule for cooking pasta, the water should be almost as salty as the sea. The pasta absorbs the water and pick up the salt making a yummy flavourful pasta.

My first recomendation is to add salt about 1% by weight and experiment a few times until you learn what tastes best to you.

My protip for any noodle in any cuisine is to replace water with a broth. A nice bone broth, chicken/pork/beef, veg broth or mushroom broth, with the right amount of salt elevates the noodle with increadible flavour. Best of all you can buy broths cheap, or make your own with scraps. My personal faves are bone and mushrooms when homemade and chicken when buying. Just remember store bought broths already have salt, so you will need to add less before cooking your noodles.