Is it fine to travel with 11 month old baby for a road trip.... What all food items must I carry?

Hi, Yes, absolutely. And the best thing that will be in your favour is that since you will be going by road everything will be accessible/available. You can stop anywhere if the baby is uncomfortable, can stop at the best place for having food and can buy fresh fruits on the way for the baby. Carry cerelac if he takes that, and take basic medicines for cold and colic. Eatables you can buy fresh on the way.