Scalloped Tomatoes

4 (#10) cans tomatoes
1 pound onions
2 pounds bread
8 ounces granulated sugar
3 tablespoons salt
3 tablespoons pepper
1 cup bread crumbs or cracker meal
1 cup Parmesan cheese
1 stick (4 ounces) margarine, melted

Drain off half of the tomato juice and reserve for another use.

Saut