Peel and dice the sweet potato into small, uniform half-inch cubes to ensure even cooking.
Heat the olive oil in a large non-stick or cast-iron skillet over medium-high heat.
Add the sweet potato cubes to the skillet and cook for 8-10 minutes, stirring occasionally, until they are golden brown and tender.
Stir in the diced red onion and red bell pepper, cooking for another 3-4 minutes until the vegetables soften.
Add the soyrizo to the pan, breaking it up with a spatula, and cook for 3 minutes until it starts to brown and release its aromatic oils.
Season the mixture with sea salt, black pepper, and smoked paprika, stirring well to combine.
Lower the heat to medium and pour the liquid egg whites over the hash mixture.
Gently fold the egg whites into the sweet potato and soyrizo until the eggs are fully set and fluffy.
Plate the hash and top with a dollop of non-fat Greek yogurt and a sprinkle of fresh cilantro before serving.