A veggie burger is a hamburger made with a patty that does not contain meat, or the patty of such a hamburger. The patty may be made from ingredients like beans, nuts, grains, seeds, or fungi such as mushrooms or mycoprotein.
Double vegan burger with tomato, lettuce and sauce
A McVeggie sandwich from a McDonald's in India
Dry ingredients, such as oats, can be added to the manufacturing process.
Mushrooms prior to cooking
A hamburger, also called a burger, is a food consisting of fillings—usually a patty of ground meat, typically beef—placed inside a sliced bun or bread roll. The patties are often served with cheese, lettuce, tomato, onion, pickles, bacon or chilis with condiments such as ketchup, mustard, mayonnaise, relish or a "special sauce", often a variation of Thousand Island dressing and are frequently placed on sesame seed buns. A hamburger patty topped with cheese is called a cheeseburger.
Hamburger
Hamburg steak has been known as "Frikadelle" in Germany since the 17th century.
The "Hamburger Rundstück" was popular already in 1869 and is believed to be a precursor to the modern Hamburger.
Cheeseburger (with onions and tomatoes) at Louis' Lunch, New Haven, Connecticut