Preheat your oven to 350°F, and spray an 8x11 inch, or similarly sized dish with non-stick spray.
Add the cream cheese to the dish, and spread, covering the bottom of the dish.
Pour Franks Buffalo sauce over the cream cheese layer and spread out evenly.
Add chicken in a single layer over the hot sauce.
Drizzle ranch over the chicken.
Top with shredded cheddar cheese.
Bake in the oven for 20 minutes, until cheese is melted.
Top with crumbled blue cheese and green onions, and serve warm.
Notes
To make ahead, complete all the steps prior to baking and refrigerate covered. Bake and garnish before serving. Refrigerate leftovers in an airtight container.