Food has been globalized. People can find many different kinds of food in USA, such as Italian, French, Asian, and of cource American food. There are cooking show on TV.
Rachael Ray show, Paula's home cooking, and Every day Italian by Giada De Laurentiis. They teach many kinds of dishes, for example, Pasta, Piza, Samon fly, and Taco. Maxican and Italian food are very integrated in americans food style.
People have been concerned about thier health more and more. People are more caring about their diet by changing their eating habit. By the survey, 75 % of people say that there are concerned thier weight. In 2006, 66 % said so. I think that's the reason why there are many cooking shows on TV. Poeple are more likely to cook by themselves for health.
source: Food Insight Newsletter