For the Roll:
1. Preheat oven to 350 F.
2. In a large bowl, blend the meat with the eggs and salt
3. Spread the meat mixture over a large piece of oiled parchment paper, forming a 1-inch thick rectangle.
4. Over the meat, sprinkle the cheese, walnuts, and olives.
5. Roll the meat, forming a cylinder.
6. Transfer the roll without parchment paper, to a baking dish and bake for about 25 minutes on the lower oven rack, then 25 minutes on the top rack.