In addition to cooked and mashed beans accompanying Huevos a la mexicana what food is mixed in the eggs at the end of preparation? 
Huevos a la mexicana:  The heat is turned off and the coriander leaves are mixed in the eggs, adding salt. Refried beans: Refried beans (Spanish: "frijoles refritos") is a dish of cooked and mashed beans and is a traditional staple of Mexican and Tex-Mex cuisine, although each cuisine has a different approach when making the dish.
coriander leaves