Preheat your oven to 375°F (190°C) and lightly grease a baking dish with olive oil.
Slice the zucchinis in half lengthwise and scoop out the seeds to create boats. Place them cut-side up in the prepared baking dish.
In a large mixing bowl, combine the shredded chicken, buffalo sauce, cream cheese, half of the shredded cheddar cheese, chopped green onions, garlic powder, salt, and pepper. Mix well until fully combined.
Generously fill each zucchini boat with the buffalo chicken mixture, pressing down slightly to ensure it's packed.
Sprinkle the remaining shredded cheddar cheese on top of the stuffed zucchinis.
Drizzle a little olive oil over the top for added moisture.
Bake in the preheated oven for 25-30 minutes, or until the zucchinis are tender and the cheese is bubbly and golden.
Remove from the oven and let it cool for a few minutes before serving.
Notes
Serve with extra buffalo sauce and chopped green onions for garnish.