
1) Cafeteria staple 2) Fast food 3) School-lunch entree, to kids 4) Spam, facetiously
Found on
https://www.crosswordclues.com/clue/mystery-meat

Mystery meat is a disparaging term for meat products, typically ground or otherwise processed, such as chicken nuggets, Spam, Salisbury steaks, sausages, or hot dogs, that have an unidentifiable source. Most often the term is used in reference to food served in institutional cafeterias, such as prison food or an American public school lunch. The t...
Found on
http://en.wikipedia.org/wiki/Mystery_meat
No exact match found.