[LT710]

I'm in a similar situation...I do sales for a home improvement company...spend my day in the office and on appointments and jobsites.
First, I don't think your diet is that bad...compared to mine! LOL! and others I've seen.
You're still getting 5 meals, all with protein.

I don't really know what you're question is, but I'd suggest getting one of those little cooler bags and one of those ice packs and pack whatever extra food you want. Or just add a protein bar.

As I said...don't really know what you're question is...do you want to add mass? Then as bigriggs said, add another sandwich. I don't know what the breakfast shake is, so I can't comment on that. But I will suggest this regardless: add 1/2 - 1 cup of raw oatmeal to that shake! The benefits are many...healthwise and calorie-wise.