Slice the zucchinis in half lengthwise and scoop out the center using a spoon to create boats. Be careful not to pierce the skin.
Place the zucchini boats on a baking sheet lined with parchment paper and drizzle with a little olive oil. Sprinkle with salt and pepper.
In a mixing bowl, combine the shredded chicken, buffalo sauce, cream cheese, half of the cheddar cheese, and chopped green onions. Mix until well combined.
Fill each zucchini boat with the buffalo chicken mixture, pressing down lightly to fit all the filling.
Sprinkle the remaining cheddar cheese evenly over the stuffed zucchinis.
Bake in the preheated oven for about 25-30 minutes, or until the zucchinis are tender and the cheese is melted and bubbly.
Remove from the oven and let cool slightly before serving. Garnish with fresh parsley if desired.
Notes
Adjust buffalo sauce to taste for desired spiciness.