The multigrain cereals are safe to use because you can store them for many days. You can also get granola and power bars because these provide your carbohydrate and instant energy.
If you want to consume potassium and dietary fiber, you should store dry fruits like raisins and apricots.
The canned tune, turkey and chicken can be stored in the pantry for at least two years. You can buy canned meat to store maximum food for your survival days.