Definitely eat them. Dh 9 times out of 10 takes them for lunch - there are three of us, so usually I will make 4 of something just in case someone wants more than one. If that is left over, dh takes it for lunch. If he doesn't take it for lunch, then I'll chop and freeze it and use it for fried rice (chicken breast/pork loin chop, etc.) Cooked veggies go in the freezer for soup in the fall/winter.
If we have a lot of leftovers that are not conducive for freezing, one night will be leftover night, and will heat everything left over, no matter how crazy the combination. I haven't been doing this as often as in the past, since dh takes for lunch more often now.