Peel the green plantain and slice it into half-inch rounds.
Place the plantain in a small pot of salted water, bring to a boil, and cook for 15 minutes until tender, then drain.
While the plantain cooks, heat the olive oil in a non-stick skillet over medium-high heat.
Add the ground turkey to the skillet, breaking it into small crumbles with a spatula until browned and fully cooked.
Stir in the diced onion, bell pepper, minced garlic, and finely minced scotch bonnet pepper.
Sauté the mixture for 3 to 4 minutes until the vegetables are softened and aromatic.
Lower the heat to medium and pour in the egg whites, adding the fresh thyme, salt, and black pepper.
Gently fold the mixture until the egg whites are just set and opaque.
Transfer the scramble to a plate, garnish with sliced scallions, and serve alongside the boiled plantains.