A hamburger (or simply a burger) is a sandwich that consists of a cooked patty made of ground meat and is generally served with various garnish or condiments like ketchup,mustard,mayonnaise,lettuce,tomato,onion,relish,pickles,and cheese toppings,placed inside a sliced hamburger bun,often baked specially for this purpose,or pieces of bread,toast.The meat patty is beef,unless otherwise noted.[1]