Grilled portabello burgers

1. Salti and freshly ground black pepper to taste 8 slices mozzarella cheese 8 kaiser rolls (or 2 loaves of italian bread) 8 romaine lettuce leaves 8 slices large, fresh tomato peel the mushrooms; brush away any dirt before you cut away the stems.
2. Combine the oil, lemon juice, garlic, fresh herbs, salt and pepper to make a marinade.
3. Add the mushrooms and the sliced mozzarella; marinate at room temperature for about an hour.
4. Grilli the mushrooms over hot coals for about 2 minutes on each side.
5. Remove from the grill and allow to rest for 5 minutes.
6. Serve the mushrooms on lightly toasted kaiser rolls with the lettuce, sliced tomatoes and marinated mozzarella cheese.
7. Cut each roll into quarters and serve.
8. Makes 8 burgers.