riskus,
that sounds like a hospital shift. i work a 700am-730pm shift, but i only live 6 mi. away. as far as nutrition goes, my schedule goes like this:
lite breakfast before work- yogurt and fruit
10am early lunch - often rice or pasta (low fat sauces) with a veggie
1pm lunch - more of the same above
4pm snack- banana and a grapefruit
8pm after i get home snack - a couple of fig newtons.

listen to you body. eat slowly. enoy it, you've worked for it. splurge for quality organic foods too.

i also run 30 - 40 mi. a week when there's no snow. i try to drink a least 2 L water a day in cool weather and more during the summer.