Grill the chicken until cooked through, then let it rest before shredding it apart with two forks.
Toss the shredded chicken with buffalo hot sauce until evenly coated, and set aside.
Preheat your oven to 400°F (200°C) and place the flatbread on a baking sheet.
Spread the buffalo chicken evenly over the surface of the flatbread, leaving a small border around the edges.
Sprinkle the crumbled blue cheese evenly over the chicken layer for flavorful bursts in every bite.
Bake the flatbread in the oven until the edges are golden and bubbling, about 12-15 minutes.
Once out of the oven, scatter the sliced scallions and crushed toasted flatbread or tortilla chips on top for added crunch and freshness.
Slice the flatbread into pieces and serve immediately to enjoy the crispy, spicy, and creamy combination.