Preheat oven to 350 degrees. In a small bowl, toss the chicken and ½ of the buffalo sauce together until chicken is well coated. Set aside.
Use a sharp knife to slice the entire loaf of Hawaiian sweet dinner rolls in half, being careful not to separate the dinner rolls. Place both halves on a cookie sheet, with the flat side up. Use a brush to coat both halves with the remaining buffalo sauce.
Assemble your pizza bread. Sprinkle the buffalo chicken, green onions and blue cheese crumbles on top of the buffalo sauce, then cover with shredded mozzarella cheese.
Place cookie sheet in the oven and bake for 12-15 minutes, or until the cheese has melted. Remove from oven and let cool for 5 minutes before serving.