Registered Dietitian here. Happy to answer questions.

CTUMBARELLO:
Just a suggestion: Have you considered canned tuna, with healthy mayo, atop a rice cake. That's easy travel food.
If you belong to Costco, the Kirkland Albacore is VERY high quality albacore.
Costco also has a bunch of dried fruit/nut mixes, which are healthy and travel well.
I enjoy canned sardines on crackers- also good protein and it travels well.

Hope those are helpful ideas that work for your taste buds.