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Adjective: bite-sized  'bIt,sIzd
  1. Small enough to be eaten in one bite
    "The caterer prepared bite-sized appetizers for the cocktail party";
    - bite-size
     
  2. Broken down into small pieces that are individually easy to understand or manage
    "The online course offered bite-sized lessons to make learning more manageable";
    - bite-size

See also: divided, divided up, shared, shared out