Heat the olive oil in a non-stick skillet over medium heat.
Add the diced yellow onion and red bell pepper to the pan, sautéing for 3-4 minutes until the vegetables are tender.
Add the ground turkey and chili powder to the skillet, breaking it up with a spatula and cooking until browned and fully cooked through.
In a small bowl, whisk together the whole egg and egg whites, then pour them into the skillet with the turkey and vegetables.
Gently scramble the eggs until they are just set and fluffy, then remove the skillet from the heat.
Warm the whole wheat tortilla in a separate dry pan for 30 seconds per side until pliable and slightly toasted.
Spread the nonfat Greek yogurt across the center of the tortilla and top with the turkey and egg mixture.
Add the shredded sharp cheddar cheese, sliced avocado, sea salt, black pepper, and fresh cilantro.
Fold in the sides of the tortilla and roll it up tightly, then place it back in the skillet for 1 minute to seal the seam and melt the cheese.