Lombata D'Agnello "Tre Marie"

1,2 kg loin of milk fed lamb, trimmed and boned
salt and freshly ground pepper
10 pistachio nuts, shelled
410 gr. pork tenderloin
125 ml extra-virgine olive oil
1 onion, finely chopped
1 carrot, finely chopped
185 gr. cooked white navy beans
90 gr. small arugula (rocket lettuce) leaves
preheat the over to 220C. Discard the lamb kidney. Flatten out the loin of lamb, skin side down, and season with salt and pepper.
insert the pistachio nuts here and there in the pork fillet, season with salt. Lay the pork on top of the lamb. Carefully roll the lamb around the pork.
salt the outside of the roll, tie it at regular intervals with kitchen string, brush well with olive oil and place it in a baking dish with the onion and carrot mixed together.
put the dish in the oven and roast for 15 minutes. Reduce the heat to 170C and roast about for an hour, turning the meat from time to time. Meat is done when the juices run clear. Remove the roast from the oven and allow to cool.
Dress the beans and arugala leaves with oil, salt and pepper.
cut the meat into thin slices and serve, garnished with the salad.