Mix together the cheese, chili flakes, pepper, celery salt and paprika. Divide mixture into 18 portions and press each portion into a log shape. Lay out one sheet of phyllo, brush with melted butter and sprinkle with panko. Lay a second sheet on top of the first; press down to make it stick. Repeat with the butter and panko. Lay a third sheet on top of the second; press down to make it stick. Brush the top lightly with butter. Divide the phyllo into four equal strips across the width. Place a cheese log at the end closest to you and roll up halfway. Fold in the ends and finish rolling it up all the way. Bake at 350F until golden brown and warmed through. Yield: 18