What are the three most popular cooking styles?

The cuisine of the Native Americans was of course the first American cooking style, and it lent a great deal not only to subsequent American cooking but also to culinary styles around the world. Turkey, corn (maize), beans, sunflowers, potatoes, peppers, and various forms of squash (including pumpkins) are among the Native American foods now widely consumed elsewhere. Superimposed on this original native diet is the massive contribution of the various immigrant groups; many dishes considered quintessentially American are in fact based upon the cooking traditions of other countries. For example, apple pies, pizza, runzas, chowder, and hamburgers are all either identical to, or derived from, European dishes. Burritos and tacos similarly have their origins in Mexico.