Preheat your oven to 350°F (175°C).
In a mixing bowl, combine the softened cream cheese, buffalo sauce, and ranch dressing. Mix until smooth and well combined.
Stir in the shredded chicken and half of the shredded cheddar cheese. Mix until evenly distributed.
Transfer the mixture to a baking dish and spread it out evenly.
Top with the remaining shredded cheddar cheese.
Bake in the preheated oven for 20-25 minutes, or until the dip is bubbly and the cheese is melted.
If desired, sprinkle with chopped green onions before serving.
Serve warm with celery sticks, tortilla chips, or crackers.