Sandwiches like many other recipes are present in all kitchens and usually always contain the best products of them. The American Burgers, of which there are many variations, the Belgian Mitraillette or half baguette with meat, chips and Samurai sauce or Bernese sauce. Gazbi from Africa that contains an unknown number of ingredients, the delicate French Croque Monsieur or a grilled and au gratin sandwich with ham and gruyere. The various Spanish Bocadillo, the famous Yaki Soba Sandwich, loved by Japanese students. An infinite number of variations to be bitten.