Preheat the oven to 400°F (200°C) and lightly oil an 8x8-inch baking dish.
In a large mixing bowl, combine the shredded chicken, softened low-fat cream cheese, hot sauce, shredded mozzarella, and plain Greek yogurt until smooth and evenly mixed.
Stir the chopped green onions, garlic powder, and onion powder into the mixture until evenly distributed.
Transfer the mixture to the prepared baking dish and spread it into an even layer.
Sprinkle the shredded cheddar cheese evenly over the top of the dip.
Bake for 16–20 minutes, until the dip is hot and bubbly and the cheese is melted. Remove from the oven and let rest a few minutes before serving.