I can pack about 4 days worth in my overnight and cooler/efb bag.
Breakfast>
6 boiled eggs
couple packs of the low sugar instant oatmeals.
a few lowfat cheese sticks
Dinner/lunch>
couple of flat tuna packs
6 pieces grilled chicken
lowcarb tortilla wraps
hummus or mustard for spreads
snacks>
mixed nuts
small apples
low sugar protein bars (yeah hard to find these)
I don't usually pack salad because I will buy them in the airport or overnights.
I like one beer or red at night.
Exercise> run outside or walk at max uphill on treadmill for 60 min. some weights if avail.
It's hard to eat right in this job and does take some planning and discipline. After day four I better be heading home or I'm falling off the wagon!