Quick Buffalo Chicken Grilled Cheese - Spicy Comfort Food in Minutes

Name: Quick Buffalo Chicken Grilled Cheese - Spicy Comfort Food in Minutes
Cuisine: American
Ingredients: For the buffalo chicken mixture; 2 cups cooked chicken, shredded (rotisserie chicken works great); ⅓ cup buffalo sauce (like Frank’s RedHot); 2 tablespoons ranch dressing; ¼ teaspoon garlic powder; ¼ cup finely diced celery (optional for added crunch); 8 slices sturdy bread (sourdough or Texas toast work well); 4 tablespoons butter, softened; 8 slices cheddar cheese; 4 slices pepper jack cheese (for extra heat); 4 tablespoons cream cheese, softened; 2 tablespoons blue cheese crumbles (optional); 2 tablespoons sliced green onions; Mixing bowl; Butter knife or spreader