Dietary restrictions and working full time

I find being gluten free that my meal packing for the day is fairly simple. I just stick to whole foods instead of trying to create recipes because it is faster some days. I leave the recipes for the weekend when I can play. I don't work full time, more like 3/4, but add in 3 kids, volunteering, hoby farm, and workouts and I am away more than home. I tend to pack for up to 16 hours away from home 3 days a week and smaller amounts the other days. My basics are whole fruit, homemade pkgs of oatmeal that I can add water to and microwave(I measure out my oats, a bit of powdered milk, and a spice or two and if I have dried fruit or some nuts will add that too. Then into a ziplock and into my bag). Lots of cut up veggies, Greek yogurt cups, they can go a few hours out of the fridge, canned tuna/sardines, granola to top my yogurt with, etc. occasionally I will heat up my thermos and then pack it with leftover soup/roasted meat and veg/casserole. I have only one choice of restaraunt food in my small town and the only thing I can safely eat is egg foo young with no sauce. So I don't bother very often.

Packing means I haul around a lot, especially when I include water bottles and tea thermos, but so worth beating the cravings or hunger that goes with not packing enough.