Preheat your oven to 375°F.
Heat the olive oil in a skillet over medium heat and sauté the diced bell peppers and onions until they are soft and translucent.
In a mixing bowl, combine the shredded cooked chicken with sea salt, black pepper, garlic powder, and half of the salsa verde and Greek yogurt.
Warm the corn tortillas in a dry pan or microwave for a few seconds to make them pliable.
Divide the chicken and vegetable mixture evenly between the tortillas, rolling them up tightly.
Place the rolled tortillas seam-side down in a small baking dish.
Whisk the remaining salsa verde and Greek yogurt together, then pour the mixture over the tortillas.
Sprinkle the shredded cheddar cheese over the top.
Bake for 15 minutes until the sauce is bubbling and the cheese has melted.
Top with fresh cilantro before serving.