I can't remember the last time I threw any food out. Even though it's just the two of us, I still cook in some quantity. Most of the time I divide the dishes in half and freeze one part.
In spite of freezing half and eating half, we still have leftovers. That's what we eat for lunch most of the time. It there's a single+ serving of something I may freeze that so I can eat it on the nights Buck has his dinner meetings.
Today's lunch was a bit of a mish-mash. There were no available leftovers, but there were two slices of loaf bread, a hamburger bun, some sliced ham, sliced cheese, homemade tomato pickles, potato chips and bagged cookies.
I made Buck a ham sandwich with cheese and made myself a grilled cheese sandwich. We both had pickles and chips and cookies for dessert.
There are still no leftovers in the refrigerator but that will change tonight because I have MORE than enough homemade turkey-vegetable-noodle soup for tonight's dinner.
I was brought up not to waste food and certainly didn't have any problem with food going "begging" when all 5 of the children were at home.