How to Make It
Heat a well-greased, 10-inch cast-iron skillet in a 325˚ oven 5 minutes or until hot. Combine first 4 ingredients in a large bowl; make a well in center of mixture. Combine 2 eggs, buttermilk, and vegetable oil; add to dry ingredients, stirring mixture just until moistened.
Remove skillet from oven, and pour batter into skillet. Bake at 325˚ for 1 hour or until firm in center, but not browned. Cool and crumble.
Combine crumbled bread, onion, and remaining ingredients; pour into a lightly greased 13- x 9- x 2-inch baking dish. Bake at 325˚ for 50 minutes or until firm.