Cuisine of New York is superb. The city has got more than 10,000 restaurants. You can expect every sort of cuisine you would like to have, available at budget and premium pricing. You should try some delicacies in Zabar's, Balducci's, and Dean & DeLuca.
It is basically known for its fish market. For making Susi, fishes are sold from here. Everyday around 5 million pounds fishes are sold from Tsukiji Fish Market. Most Michelin stars in the world are found here. You can also have some casual dishes as well.