Hi dear, the key rule is to make your baby eat what you eat. But best to carry something along too, Because always we can't find food options good enough for kids. You can pack idlis, or get them from any restaurant on the way. U can carry stuffed parathas but make sure to finish it up within 3-4 hours since it's very hot n it can get spoilt. You can carry pooris , they stay for longer duration. Get plain rice from any restaurant and mix curd n give. Fruits also can be carried, and since you are traveling by car, you can try n carry homemade cakes, or cupcakes.