Kashrut
Among the numerous laws that form "kashrut" are prohibitions on the consumption of certain animals (such as pork and shellfish), mixtures of meat and milk, and the commandment to slaughter mammals and birds according to a process known as "shechita". There are also laws regarding agricultural produce that might impact the suitability of food for consumption.
American cuisine
Shellfish of all sorts are part of the diet, and shellfish of the coastal regions include little neck clams, sea scallops, blue mussels, oysters, soft shell clams, and razor shell clams. Much of this shellfish contributes to New England tradition, the clambake. The clambake as known today is a colonial interpretation of an American Indian tradition. In summer, oysters and clams are dipped in batter and fried, often served in a basket with french fries, or commonly on a wheaten bun as a clam roll. Oysters are otherwise eaten chilled on a bed of crushed ice on the half shell with mignonette sauce, and are often branded on where they were harvested. Large quahogs are stuffed with breadcrumbs and seasoning and baked in their shells, and smaller ones often find their way into clam chowder. Other preparations include clams casino, clams on the half shell served stuffed with herbs like oregano and streaky bacon.