Hamburger

From Encyc

A hamburger, or burger is a food made with a ground beef patty in the middle, and a bun around it composed of bread. Often they have toppings such as ketchup, mustard, lettuce, tomato, onions, or pickles. Although named after a city in Germany, the food achieved popularity first in the United States. It is a staple in almost much every restaurant in the United States.