We have a huge Sunday dinner every week with MIL and FIL. I cook tons of food and send them leftovers home. They do not mind leftovers and manage to get 2 more meals out of them. I sometimes cook an extra dish that i don't put out for dinner so they can have something different one night. Also when my MIL was in the hospital we had to deliver dinner to FIL about every night. He eats early and I get home from work to late to feed him. I would cook one night, put his dinner in the fridge, then the next night that one got delivered to him as I was cooking again. Some meals don't stand up to that and we had to think about what we were cooking. Its very hard to do on a long term basis. Good luck!