The pinto bean is a variety of common bean. In Spanish they are called frijoles pintos. It is the most popular bean by crop production in Northern Mexico and the Southwestern United States, and is most often eaten whole, or mashed and then refried. Either way, it is a common filling for burritos, tostadas, or tacos in Mexican cuisine, also as a side or as part of an entrée served with a side tortilla or sopaipilla in New Mexican cuisine.