Preheat your oven to 375°F and lightly grease a small baking dish.
Poach the chicken breast in simmering water for 12-15 minutes until fully cooked, then shred it finely using two forks.
In a medium mixing bowl, combine the Greek yogurt, lime juice, chili powder, cumin, garlic powder, sea salt, black pepper, and diced green chiles.
Add the shredded chicken to the bowl and stir until every piece is thoroughly coated in the creamy lime sauce.
Soften the corn tortillas by heating them in a dry skillet for 30 seconds per side until pliable.
Spoon the chicken mixture into the center of each tortilla, roll them up tightly, and place them seam-side down in the prepared dish.
Bake for 10 to 12 minutes until the tortillas are slightly crisp and the filling is hot.
Top with freshly chopped cilantro and serve immediately.