Preheat your oven to 375°F (190°C) and lightly grease a small oven-safe baking dish with a touch of coconut oil.
Cut the sprouted grain bread into 1-inch cubes and spread them evenly across the bottom of the baking dish.
In a medium mixing bowl, whisk together the eggs, liquid egg whites, Greek yogurt, cinnamon, vanilla extract, maple syrup, and sea salt until the mixture is smooth and well combined.
Scatter the fresh mixed berries over the bread cubes, tucking some into the crevices.
Pour the egg and yogurt custard evenly over the bread and berries, making sure every piece of bread is saturated.
Let the dish sit for about 5 to 10 minutes so the bread can fully absorb the liquid custard.
Bake for 25 to 30 minutes, or until the top is golden brown and the center is set and bouncy to the touch.
Allow the bake to cool for 5 minutes before slicing and serving warm.