Mediocrity: : the quality of something that is not very good : the quality or state of being mediocre
: a person who does not have the special ability to do something well: the quality of food and service in this establishment
Adequate: : enough for some need or requirement
: of a quality that is acceptable but not better than acceptable: food in this place fills a nourishment requirement but nothing more
See also: filler food
Staff overall seem unhappy. Kinda sad.