How can I make my own Super Noodles/instant noodle seasoning?
Find a good Asian food market. They should sell small jars, tins, or liquid in sachets of soup flavours.

I find the jars most convenient. About a teaspoon per serving is plenty, store in the fridge after opening.

Some of the liquid in sachets can be the most authentic for the Asian style, but for just a beefy broth, one of the jars will do fine.

If you like a more tomato flavour, buy bulk cans of tomato paste, freeze in ice cube trays, then bag in zip style freezer bags. One or two cubes per serving works fine, and they just melt into the hot noodle soup base.

Use low salt noodles, as most of the soup flavours are very salty for preservation reasons.

Here are some examples I use. Click on pictures for full size view.