Cover a shallow pan (15.5x10.5x1 inch) with popcorn. Place in a preheated 350-degree oven for 5 minutes. Melt butter, cool slightly, add Tabasco sauce, paprika, and Parmesan cheese. Slowly pour over corn, mixing to coat well. Season with salt or garlic salt. Serve immediately or keep piping hot in a low-temperature oven set at 140 degrees.