Protein powder and milk. 500 ml of milk 2 scoops of protein powder, 4 egg whites (I just separate the eggs).I drive trucks and heavy equipment too so I can't garentee I'll be having hot meals or anything during work
Drink that when you can't eat a real meal. I suggest you take a digestive enzyme with is, helps with the gas, lol. Unless you have no issues with milk. When I was younger a a huge hard gainer and had no appetite, I would drink that 2 times a day. Got in my total amount of protein needed, anything I ate after that was a bonus. Now I didn't know about enzymes, so the gas would get pretty potent at times. Very funny for me, very painful for others, lol.
Put it in a thermos. (not the farts, lol, the milk mixuture))