Crossword puzzle clue "special fast food ingredient"

Special fast-food ingredient

Fast food sandwich whose return is always celebrated even though it's, you know, fast food

Fast food order with "special sauce"

Fast food symbol associated with one of this puzzle's special letters

Big ___ (fast-food burger with "special sauce")

Big ___ (fast food burgers topped with "special sauce")

Fast-food food

Device to keep food warm at a fast-food restaurant: 2 wds.