@anemone @ren @fwc it's actually not, it's very, very tasty. We also use tomatoes and onions sometimes to make it a bit fuller. Also homemade mayo or avocado and rice. There's also a dish called Causa de Atún that mixes mashed potatoes with tuna.

https://peru.com/estilo-de-vida/gastronomia/como-preparar-causa-de-atun-causa-causa-rellena-pescados-comida-peruana-recetas-gastronomia-del-peru-semana-santa-noticia/