Spray a 13x9 casserole dish. Place bread cubes on bottom.
In a large bowl, beat eggs, half and half, sugar, cinnamon, salt and vanilla.
Pour over bread cubes. Refrigerate at least 4 hours, or overnight.
Heat oven to 400 degrees. Bake, uncovered 25 to 35 minutes. Should be golden brown.
You can top this with maple syrup, fresh fruit, jam or fruit sauces.