My Grandmother made this. I’ve always loved tomatoes.
Cook celery and onion in butter until just tender; blend in flour. Butter toast; cut in ½-inch cubes. In a 1-½-quart casserole, combine the onion-celery mixture with tomatoes, half the toast cubes, the sugar, and the seasonings. Bake at 350 degrees F for 30 minutes. Top casserole with remaining toast cubes and bake for 20 minutes longer.