Chiles en Nogada

"The name comes from the Spanish word for the walnut tree, nogal.
It consists of poblano chiles filled with picadillo (a mixture usually containing shredded meat, aromatics, fruits and spices) topped with a walnut-based cream sauce,
called nogada, and pomegranate seeds, giving it the three colors of the Mexican flag: green for the chili, white for the nut sauce and red for the pomegranate.
The walnut used to prepare nogada is a variety called Nuez de Castilla or Castilla Walnut"

Source: Wikipedia

Note: This dish is difficult to make and hard to find done well at Restaurants.
If you live in the San Diego area go to "Pozoleria La Casa Del Abuelo"
119 West San Ysidro Blvd, San Yisidro, CA