Montaditos are open-faced sandwiches and an essential tapa in Spain. Although there is no set list of ingredients, montaditos are always made with bread slices, typically from a thin elongated bread similar to a baguette. The toppings are incredibly versatile and may include anything from smoked meat, chorizo sausages, jamóns, various types of cheese, pickled vegetables, anchovies, as well as other types of seafood.

The combinations are seemingly endless, and there are no set rules which toppings to use and how to combine them. It is believed that montaditos were the first type of sandwiches in Spain, dating back to fifteen or sixteenth century. The name montadito is believed to stem from the word montar, meaning to mount—as a reference to all the toppings that are mounted on top of each bread slice.