I have worked shifts like that in the past. It was hard to eat meals at first when switching, but going with it was worthwhile. I would consider sleep aid supplements to help with the switch (some of my friends swear by Z-12 or 3mg melatonin - take only for 3-4 days to help reset bodyclock). Perhaps you may want to keep the calories a tad higher the days after switching, decent fat sources like nuts, avocados, and fish oils will help your hormonal system deal with the stress. Also a small meal with carbs from a slow digesting source like oats or sweet potatoes may help with the stress.
You will have to experiment a little to find what is best. One thing I noticed was it was better to eat a little every 2 hours rather than a bigger feeding every 4 for the first few days, but like always results vary. If you take stimulants like caffeine, make sure your last dose is 6-8 hours before you go to sleep, the longer the better. Camomile tea helps with stress modulation and is nice to use to wind down. There are some other herbal teas that also work well depending on the person. Starbucks Calm mix is a good camomile-based blend (has some other herbs too).
Whatever you do, don't overdo the stimulants. If you have downtime and need to keep awake, a walk or some pushups are a good pick me up. Perhaps you can even bring a dumbbell and do a mini workout a couple times to keep yourself going. Going for a 30 minute walk when you wake and before sleep also works well for many people (this of course depends on the nature of your work).