Whole Roasted Buffalo Cauliflower

Name: Whole Roasted Buffalo Cauliflower
Ingredients: 1 large head cauliflower (2 1/2 to 3 pounds); 1 stick (8 tablespoons) unsalted butter, diced; 1 teaspoon garlic powder; 1 teaspoon onion powder; 1/2 teaspoon celery salt; 1/4 teaspoon paprika; Kosher salt and freshly ground black pepper; 1 cup Buffalo sauce; 1/2 cup crumbled queso fresco (about 2 ounces); 1/2 cup celery leaves; 1 tablespoon chopped fresh chives; 3 tablespoons ranch dressing, plus more for serving; 3 celery stalks, cut into 3-inch sticks; 2 large carrots, peeled and cut into 3-inch sticks