Complex sentence: Many restaurants in the United States convert their menus to Prix Fixe only for certain holidays, generally, holidays where entire families dine together or on couple centric holidays, such as Easter and Thanksgiving or Valentine's Day and Sweetest Day, respectively.
Split into simpler sentences: Many restaurants in the United States convert their menus to Prix Fixe only for certain holidays. Generally, this practice is limited to holidays where entire families dine together or on couple centric holidays, such as Easter and Thanksgiving or Valentine's Day and Sweetest Day, respectively.