for me it would depend on how soon after I'm going to bed. sometimes I don't eat anything all day until 1 am - this happened recently after sight seeing on my vacation all day, all I'd eaten was half of a soft pretzel and whatever calorie that was was way burned off. I ate a 600 calorie meal at 1am a went to bed around 5. not the BEST thing to do mind you but that's what I usually do. The next morning I had a light breakfast with my extra calories - I usually skip breakfast. I still had 500 calories left over that I hadn't eaten from that day and that worked in my favor for a BBQ someone threw for us
So yeah. sometimes if I know I'm doing something special the next day I will save all of those calories if I miss dinner. if its REALLY late I will eat something really small like cereal, with more milk than usual.