Preheat the oven to 350 degrees F (175 degrees C). Grease a small baking dish with cooking spray.
Whisk eggs, milk, vanilla, and cinnamon together in a bowl.
Cut bread slices into squares and place in the prepared baking dish. Pour egg mixture over top, making sure all bread is soaked. Sprinkle berries and coconut on top.
Bake in the preheated oven until egg mixture is set, 15 to 30 minutes; check often to make sure coconut doesn't burn.