FWIW, I don’t worry too much about it. What we spend on food we spend, and if HKBH will send it back to us, He’ll send it back.
In addition, in our family, the “traditional” Sunday night dinner is Shabbos leftovers. If HKBH wants to deduct from our “Shabbos allowance” for that, then so be it. I’m not going to throw the food away.
The Wolf