La Granja de Oro is located at 1832 Columbia Rd NW. Their Web site says:
“In this restaurant, you will find the most extensive and varied selection of Peruvian food, which encompasses a wide variety of meat, fish, seafood and grilled chicken, along with a vast salad bar that is included with meals, and other delights. A chief requirement of a restaurant’s success is good food at the hands of those who prepare it; La Granja de Oro counts on the vast expertise of five master chefs of Peruvian cuisine.”
You can see their menus here. Any must order items?