Meanwhile in a large bowl combine chicken, 1 cup of cheese, bechamel (or cream of mushroom/chicken soup), garlic powder, jalapenos, pasta water, cream cheese sour cream, scallions, and bacon. Mix well.
1 ½ cup rotisserie chicken, 2 cups sharp cheese, 2 cups bechamel sauce, ½ cup sour cream, 1 teaspoon garlic powder, ¼ cup pickled jalapenos, ½ cup pasta water, 150 g 5 oz bacon, cut into pieces and cooked until crispy, ½ cup herbed cream cheese, ¼ cup scallions