When I was telling my sister about making a cell phone app, she asked if I could do something like this
  - Based on a scanned receipt, figure out what mean can be made from it

With how efficient AI analysis has become since our old conversations, I think the following might be helpful.
  -  Based on the ingredients in a refrigerator, suggest a meal
  -  Based on a meal and ingredients in a refrigerator, identify what needs bought and/or subsituted