
Heat oven to 425 degrees. Place flatbreads on baking sheets.
Combine BBQ sauce with 1/2 cup Buffalo Wings Sauce. Divide mixture between the flatbread. In a small bowl toss chicken with remaining 1/4 cup Buffalo Wings Sauce. Arrange on top of pizzas and top with cheeses.
Bake for 8 to 10 minutes, till edges of bread are toasted and nicely browned and cheese is melted. Remove from oven and top with chopped green onion.
Transfer to a cutting board, cut into wedges, and serve.