In a large non-stick skillet over medium-high heat, cook the ground turkey until browned and cooked through, breaking it into small crumbles.
Add the diced bell pepper and red onion to the skillet; sauté for 4-5 minutes until vegetables are tender.
In a medium bowl, whisk together the egg whites and whole eggs until combined.
Reduce heat to medium-low and pour the egg mixture into the skillet with the turkey and vegetables.
Stir in the cumin, chili powder, salt, and black pepper.
Scramble the eggs gently until fully set but still moist; stir in the black beans to warm through.
Warm the tortillas slightly in a dry pan or microwave to increase pliability.
Divide the filling evenly among the four tortillas, placing it in the center.
Top each portion with 2 tablespoons of shredded cheese and 2 tablespoons of salsa verde.
Fold in the ends of each tortilla and roll tightly to seal the burrito.