Slice the zucchinis in half lengthwise and scoop out the centers using a spoon to create boats. Be sure to leave about 1/4-inch of zucchini on the edges for stability.
In a medium bowl, combine the shredded chicken, buffalo sauce, cream cheese, half of the shredded cheddar cheese, and green onions. Mix until well combined.
Season the mixture with salt and pepper to taste.
Place the zucchini boats on a baking sheet lined with parchment paper and drizzle lightly with olive oil.
Spoon the buffalo chicken mixture evenly into each zucchini boat, filling them generously.
Sprinkle the remaining cheddar cheese on top of each filled zucchini boat.
Bake in the preheated oven for about 25-30 minutes, or until the zucchini is tender and the cheese is melted and bubbly.
Remove from the oven and let cool slightly before serving.
Notes
Serve the zucchini boats on a platter, garnished with additional chopped green onions and a drizzle of buffalo sauce for extra flair.