Yes, u definitely r missing a lot of goodies!!!!!!! I do not know what kind of Chinese food u r having there, but I usually do not eat Chinese food when I travel to other countries.
I sincerely hope that u would visit Hong Kong or Shanghai / Beijing someday & try the real Chinese food, the ingredients u listed r just basic & most commonly used, u did not put oyster sauce nor black bean sauce nor xo sauce, may be u never heard of these sauces.
Below is a website which u may view some photos of Chinese food the restuarants serve in Hong Kong. You click the district name then click the restaurant is name, the photos of the dishes would appear.
http://hongkongfoodguide.com/eng/index.shtml
Below is a website showing some popular recipes of Chinese food & the recipes r written by a Hong Konger, so please excuse his Chingish, but u may find there r a lot of different ingredients be used in the recipes & u can view the photos of the food too
http://nicemeal.com/chicken.html
Below is my best answer to another question about Hong Kong sauces which I posted some sauces that the westerners may not be familiar with or never heard of them, if u r interested u may also have a look too.
http://..com/question/index;_ylt=AhfxJynC51gszZAxnHqDf1Lty6IX?qid=20070423143608AAUOpNc&show=7#profile-info-LLUpLLhMaa
By the way, Chinese home cooking demands using fresh ingredients, freshly killed chicken, duck, goose, fish or seafood, etc. r the best & we still have a habit to buy the ingredients in the wet market daily some housewives go the market twice a day, the livestyle is very different when compare to the western world. Restaurant cooking mostly use frozen meat, unless the restaurants r expensive ones!
China is a big country, we have 8 different types of cuisines & they all r different in tastes, way of preparations.. u may have a quick glance about them in below website
http://en.wikipedia.org/wiki/Chinese_food