Always carry a shaker with you with a couple scoops of whey. Add water when you're ready to drink it.
Cook your meals in advance. I like to throw a whole pack of 93/7 lean burgers on the grill on Sunday when I'm not busy, and put them all in the fridge. Put them in a ziplock bag or tupperware and go, bun or no bun, dont forget your condiments if you cant eat 'em plain.
Always carry something non-perishable like canned tuna, protein bar, whatever, something with a long expiration date that won't go bad in the car, in your desk at work, or w/e you are most of the time.
I like to keep a small igloo cooler in my car with a freezer pack if im on the go, have my premade meal and an RTD or something. It's easy if you plan ahead. If you wake up at 7:30 and gotta be at work by 8 and haven't thought this stuff out in advance, it can be a hassle and huge PITA. Put some thought and effort into it and you can definitely make 5 minutes to eat every 2-3 hours without it causing issues at work.