In a small mixing bowl, whisk together the whole eggs, egg whites, sea salt, and black pepper until the mixture is uniform and slightly frothy.
Place a non-stick skillet over medium heat and add the ghee, swirling to coat the bottom of the pan.
Add the diced red bell peppers to the skillet and sauté for 3-4 minutes until they become tender and develop slight golden edges.
Add the baby spinach to the pan and toss with the peppers for about 30 seconds until the leaves are just wilted.
Pour the egg mixture over the vegetables and reduce the heat to medium-low, allowing the eggs to set around the edges.
Gently lift the edges of the omelette with a silicone spatula, tilting the pan to let the raw egg flow underneath.
Once the center is mostly set but still slightly moist, fold the omelette in half and cook for an additional 30 seconds.
While the omelette finishes, toast the sprouted grain bread until it reaches your desired level of crispness.
Slide the omelette onto a plate and serve immediately alongside the warm protein toast.