California Chicken Flatbread

Preheat oven to 350 degrees F. Meanwhile, cook bacon in a large skillet over medium heat until crispy. Drain cooked bacon on paper towels but leave the fat in the pan. Add onions and cook in bacon fat until softened. Add chicken to the pan and sauté, stirring occasionally, until cooked through, about 6 to 8 minutes. Remove from skillet. Place flatbread on a large baking sheet. Sprinkle shredded cheese over flatbread, then top with chicken and bacon. Bake until the cheese is melted, about 10 minutes. Meanwhile, mix together ranch and Sriracha in a small bowl. Top freshly baked flatbread with avocado and scallions. Drizzle with spicy ranch and serve.