1. Core tomatoes; cut in half crosswise. Place cut side up in shallow baking dish just large enough to hold them snugly; sprinkle with 1/2 teaspoon salt.
2. Saute green onion and garlic in olive oil in medium skillet until soft, about 3 minutes; remove from heat. Add bread crumbs, cheese, remaining salt, pepper, Italian seasoning and lemon rind; toss lightly with fork. Top each tomato with about 2 tablespoons of the crumb mixture.
3. Bake in a moderate oven (350 degrees) for 25 minutes, or until tomatoes are soft, but do not fall apart, and crumb mixture is lightly browned.