Sandwiches de miga are popular food items in Argentina where they are consumed mainly at parties. The sandwiches de miga are similar to the English cucumber sandwich, which is a typical tea-time food, and resembles the Italian tramezzino. They are single or double layered sandwiches, made from a thin white bread without crust, i.e. the part of the bread called "miga" (i.e., crumb). They are filled with thinly sliced meat (especially but not limited to) ham, eggs, cheese, tomatoes, green peppers, lettuce, and sometimes other vegetables, even asparagus. Butter is another important ingredient. They can be toasted or untoasted.
Instead of making them from scratch, most Argentines simply buy them at the local bakery.