Leftovers
To dream of food leftovers represents feelings about an experience that allows you to sustain yourself that is mostly over with, but allows you to experience whatever is left if you want to.
Negatively, dreaming about food leftovers may represent "reheating" old arguments or second-rate treatment from others. Feeling forced to settle for scraps rather than experiencing something fresh and fulfilling, or you might be struggling with the feeling that a current situation has lost its original spark or vitality.
Consider the type of food for additional meaning.
Example: A woman dreamed of going into the kitchen to get a soda pop, but all that was left was food leftovers. In waking life, her boyfriend was considering breaking up with her and seeking counsel about it. She didn't know what to do to change his mind. In this case, the food leftovers may have reflected her feelings about any discussion about avoiding ending the relationship being "mostly over." She may have also felt her only chance to keep her relationship was to "reheat" old arguments which were unlikely to help.