If quiche and Thanksgiving stuffing had a baby, it would be this bread pudding.
In a large bowl, whisk the eggs and milk together. Add the thyme, rosemary, basil, salt, pepper, and mustard.
In another large bowl, mix the bread, 3/4 cup of the cheese, turkey, and apple before putting it in a cast iron skillet or a well-greased large casserole dish. Pour the egg mixture over the bread, then let the bread absorb the liquid for 30 minutes. Sprinkle the remaining cheese overs the top of the bread, and cook at 350°F for 45-50 minutes.