Well, I'm giving a list for the question you asked. It can be a better solution to carry the following food while you are travelling...
1. Dry cake (packet)
2. Biscuits (packet)
3. Grape (in a small box)
4. Biriyani pack (dry)
But you have to bring most essential element as well.They are..
5. Water bottle
6. Polythene (for food particle)
7. Tissue paper
Also Read :- what is the best food for unclog arteries?