Preheat oven to 350º F. Spray pie plate with nonstick cooking spray. Set aside.
In a large bowl, add bread cubes, apples, sugar, cinnamon, ginger, and salt. Toss to combine. In a separate measuring cup, add milk, eggs, and vanilla. Whisk together with a fork and then add to the bread mixture. Stir to combine and pour into prepared pie plate.
Bake for 20 minutes, until golden brown and a toothpick comes out clean when inserted in the middle.