Preheat oven to 350 degrees then spray a baking sheet with non-stick spray very well and set aside. Cut bread slices into thirds then set aside. In a large shallow dish, whisk together eggs, milk, melted butter, vanilla, and cinnamon. Dunk bread sticks into batter, let excess drip off, then place onto prepared baking sheet. Bake for 16-18 minutes, spraying the tops of the French Toast Sticks with non-stick spray before flipping halfway through. To freeze: Let French Toast Sticks cool then place onto a baking sheet and freeze in the freezer. Transfer to a freezer bag or container when hard. To reheat, microwave for 30 seconds to 1 minute.