Stuffed Green Peppers

3 large green peppers, halved and seeded
1 / 4 tsp black pepper
3Tbps oil
1 onion, finely chopped
1 cup cooked rice
2 tomatoes
1 /2 tsp salt
1 cup bread crumbs
1 cup grated cheese
2 Tbps minced sage (if available)
basil, oregano, thyme, parsley