If you've got Soy Sauce, Sesame Oil, Sugar, and Noodles, you can make this!
You can add whatever you'd like. When I was growing up, I had it most often this way. Sometimes, there would also be chunks of Beef or Surimi added. I recommend using whatever you have laying around or what you like. This dish is super versatile and fun to eat and share, as well as colorful and full of texture and flavor!