Preheat the broiler. Split the whole pack of attached dinner rolls in half horizontally. Place the top and bottom halves cut-side up on a baking sheet. Broil until toasted, 1 to 3 minutes. Remove from the oven and preheat to 400 degrees F.
Melt the butter with the hot sauce in a small saucepan over medium-high heat, whisking, until smooth. Toss the chicken with all but 1 tablespoon of the spicy butter in a medium bowl.
Spread the chicken mixture evenly on the bottom bread piece; dot evenly with the cheeses and sprinkle with the celery. Cover with the top bread piece, then brush the roll tops with the reserved 1 tablespoon spicy butter and sprinkle with the celery seeds. Bake until the bread is toasted and the cheese is melted, 12 to 15 minutes.
Photograph by Levi Brown
Courtesy of Food Network Magazine, Photograph by Levi Brown